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Signal Processing is the art of transforming different kinds of signal (sounds, images, videos, etc.) into a lattice of information that can extracted and applied in many different ways. Digital signal processing (DSP) considers both technological aspects, such as the study of algorithms, and conceptual aspects; it makes the virtual world closer to the physical world. It is used to transform data into useful information for state-of-the-art machine learning models, a growing area for many businesses for decision support and predictive analytics. This work is made possible by DSP Engineers that know how to capture and process signals from both physical and virtual sources.
Signal Processing Engineers are experts in both the technology and algorithms that enable data analysis. They are able to program efficient applications for sensory processing as well as devise effective strategies for storage repository of data. Furthermore, they streamline complicated engineering processes within organizations such as creating mathematical modeling systems or addressing specific modelling problems with meaningful input-output relationships related to their areas of expertise: electroencephalogram (EEG), electrocardiogram (ECG), medical devices and development.
Here's some projects our expert DSP Engineer made real:
- Improving accuracy of machine learning models by fine tuning signal processing code written in C++
- Utilizing Transformers for EEG-based motor imagery recognition
- Analyzing signals and performing Fourier Transform routines in MATLAB/Octave/SCILAB
- Developing Bandpass filters in C++ for data clustering
- Remote debugging using matlab for eeg signal processing
- Extracting features from EEG signals to detect emotion synchronization between a mother and an infant
- Cleaning Time Series Data with columnwise smoothing in Python Panda
Indeed, Signal Processing has been integral in speeding up key engineering projects that require complex mathematical modeling processes to be completed. Our expert DSP Engineers on Freelancer.com are here to assist you with your project no matter the scope. So if you need help with a Signal Processing problem or want advice on improving existing strategies within your organization, you can trust these professionals provide expert advice and results quickly and cost-efficiently. Turn your next project into a success story today - post your job ad now at Freelancer.com!
Nga 4,112 vlerësimet, klientët vlerësojnë DSP Engineers 4.9 nga 5 yje.Punësoni DSP Engineers
Signal Processing is the art of transforming different kinds of signal (sounds, images, videos, etc.) into a lattice of information that can extracted and applied in many different ways. Digital signal processing (DSP) considers both technological aspects, such as the study of algorithms, and conceptual aspects; it makes the virtual world closer to the physical world. It is used to transform data into useful information for state-of-the-art machine learning models, a growing area for many businesses for decision support and predictive analytics. This work is made possible by DSP Engineers that know how to capture and process signals from both physical and virtual sources.
Signal Processing Engineers are experts in both the technology and algorithms that enable data analysis. They are able to program efficient applications for sensory processing as well as devise effective strategies for storage repository of data. Furthermore, they streamline complicated engineering processes within organizations such as creating mathematical modeling systems or addressing specific modelling problems with meaningful input-output relationships related to their areas of expertise: electroencephalogram (EEG), electrocardiogram (ECG), medical devices and development.
Here's some projects our expert DSP Engineer made real:
- Improving accuracy of machine learning models by fine tuning signal processing code written in C++
- Utilizing Transformers for EEG-based motor imagery recognition
- Analyzing signals and performing Fourier Transform routines in MATLAB/Octave/SCILAB
- Developing Bandpass filters in C++ for data clustering
- Remote debugging using matlab for eeg signal processing
- Extracting features from EEG signals to detect emotion synchronization between a mother and an infant
- Cleaning Time Series Data with columnwise smoothing in Python Panda
Indeed, Signal Processing has been integral in speeding up key engineering projects that require complex mathematical modeling processes to be completed. Our expert DSP Engineers on Freelancer.com are here to assist you with your project no matter the scope. So if you need help with a Signal Processing problem or want advice on improving existing strategies within your organization, you can trust these professionals provide expert advice and results quickly and cost-efficiently. Turn your next project into a success story today - post your job ad now at Freelancer.com!
Nga 4,112 vlerësimet, klientët vlerësojnë DSP Engineers 4.9 nga 5 yje.Punësoni DSP Engineers
Low Power, High Speed,Area Efficient Multiplier based on the PTL logic style is the project title.I have to implement using cadence virtuoso.
I need a complete engineering solution for an ultra-low-frequency electromagnetic transmitter that operates at roughly 22 Hz and fits inside an inline pipeline PIG. Once the PIG is in service, the beacon’s field must be strong enough to be detected up 3–5 m above the pipe, even when the signal has to pass through steel wall, backfill, soil, and asphalt or reinforced concrete. All operations take place underground and fully enclosed by steel, so coil geometry, core selection, drive strategy, and noise rejection are critical. Scope of Work: • Design a low-frequency (~15–30 Hz, target 22 Hz) EM transmitter • Optimize signal strength for underground detection • Develop efficient antenna/coil design suitable for pipeline use • Design low-power circuitry fo...
I need a small Python-based utility that runs reliably on macOS and strips the SyntID watermark Google bakes into both its Text-to-Music and Text-to-Speech outputs. The goal is simple: after processing, the resulting audio should pass Google’s own detection checks while sounding identical to the human ear. Here’s what matters most to me: • macOS compatibility out of the box (Monterey and newer) using standard Python 3 libraries plus any open-source audio packages you feel are essential. • One command (or callable function) that accepts a Google-generated audio file, cleans it, and writes back a high-fidelity file in the same format. • Clear inline comments and a concise README so I can understand the logic, install any dependencies with Homebrew/pip, and r...
I’m looking for an experienced engineer who can take my custom-built hardware and make it work seamlessly within a larger system. The heart of the job is hands-on hardware integration—not general project management—so I need someone who is comfortable troubleshooting boards, refining firmware, and confirming that every physical connection and signal behaves as intended. Key goals • Map out the integration plan for the custom boards, interfaces, and peripherals I already have on hand. • Develop or refine any required low-level firmware so the hardware communicates reliably with the host system. • Validate the full signal chain with bench testing, basic stress tests, and a succinct report of results. What I’ll provide – Schematics, compone...
I'm looking for an experienced PCB designer to create multiple PCBs for an integrated control system. The project includes: 1. Current Sensing PCB: - Type: To be determined (shunt resistor, Hall effect sensor, or Rogowski coil) 0 to 20 amps at 240 volt 2. Motor Control PCB: - Function: Control a motor with two limit switches - Control Method: Direct ON/OFF control no limit switched required if can find away around 3. Relay Control PCB: - Components: Two relays (one normally closed, one normally open) 4. Touch Screen Interface PCB: - Function: Control and monitor all PCBs has the main power coming in at 240 volt and is the brain behind the can bus 5. Communication Adapter PCB: - Function: Split communication cable all pcbs will communicate over a cable and ...
I’m building a palm-sized device that helps automate at-home medication. Inside it sit two independent plungers driven by micro servos, a vibration motor, a small speaker for audio prompts, and a 1.68-inch colour display for on-device instructions and feedback. All of these elements need to live on a custom PCB, run from a single rechargeable battery that is properly sized for daily use, and work seamlessly together. You will receive the full parts kit, so your focus is on: • designing the board, • assembling and reflowing it, • loading the firmware, and • proving that everything operates exactly as intended. The most important interaction is tight, reliable coordination between the user’s button press (or other trigger you recommend) and the t...
Short Summary of the Research This research focuses on designing a high-gain antenna for 5G communication at 36–38 GHz (millimeter-wave). Since 5G at these frequencies suffers from high signal loss, the study aims to improve signal strength using an efficient antenna design. The proposed solution is a compact stacked slot antenna, which provides: Wide bandwidth (34–44 GHz) Stable radiation pattern (consistent signal in all directions) Minimum gain of ~6 dBi (higher in arrays) To improve performance, the antenna is developed in three stages: Single antenna element – basic design and testing 1×2 array – increases gain by ~2–3 dB 1×4 array – further improves gain (~6 dB increase overall) The study proves that increasing the number of antenna ele...
Hybrid Artificial Intelligence System for Autonomous Drone Detection Using Computer Vision and RF Signal Analysis The idea is to build AI detection system based on hybrid method (Computer vision and RF signal) and present results :Accuracy, Precision, Recall and False Alarm Rate Algorithms: Computer vision: YOLOv8 (Object Detection) RF analysis: CNN for Spectrogram analysis Merge in : Rule-Based Fusion • or Neural Network Fusion Dataset : Vision Datasets: • Anti-UAV Dataset • VisDrone RF Datasets: • DeepSig RadioML Dataset • Custom SDR Capture (HackRF / RTL-SDR) Budget : 150$
I have a LabVIEW program that is already developed and mostly complete. The cRIO hardware is also installed and configured in LabVIEW. The goal is to control one gas pump and one water pump using LabVIEW. Currently, the water pump is working properly, but the gas pump is not functioning. We need to identify the root cause of this issue. For this purpose, we are looking for a LabVIEW specialist who can help diagnose and resolve the problem. In addition, we have two sensors whose readings need to be displayed in LabVIEW. List of tasks to be completed on this nearly finished LabVIEW project: 1. Control the gas pump speed (increase/decrease) via LabVIEW commands 2. Ensure that the water pump, which is already functioning, is not disrupted 3. Connect two sensors to LabVIEW and display the...
I need a skilled embedded systems engineer to integrate the VS1010 for audio playback and recording in an embedded system. The VS1010 should specifically support WAV file format. Key Requirements: - Implement VS1010 for WAV audio playback - Integrate into an embedded system Ideal Skills and Experience: - Experience with VS1010 and audio processing - Strong embedded systems development background - Proficiency in handling WAV audio files Please provide examples of previous similar work.
I am developing a compact wearable lighting device based on an ESP32 (ESP-NOW communication + WS2812 LEDs + LiPo battery system). This project is already in progress. I have an existing schematic and PCB layout, but I am looking for an experienced engineer to review, improve, and finalize the design for production. This is not a one-pass project. It will likely require back-and-forth discussion and iterative refinement to arrive at the correct final design. I want to be clear that I will be actively reviewing the work and asking questions as I go. I need someone who is comfortable with that process and open to collaboration. I do not want a situation where I feel hesitant to point out concerns or request changes. --- ### Critical Requirement (Very Important) This device must reliably...
i want a PCB for in-situ, real-time verification of sensor integrity in a live without interrupting the control process of components of PCB for cooling, heating and humidity, communication ports and AutoDetect sensor frailer equipment' because hardware often operates in controlled, safety-critical, and validated environments layout Design with components of advanced PCB for control /set point and manage temp of cooling sensor , heating sensor and humidity sensors, light sensor, proximity sensor, water low sensor, pressure sensor, high/low voltage sensor, wire and wireless commination ports lan, usb, can bus, rs-485 etc, processor, ram, memory, and AutoDetect sensor frailer, all types of alarms like heater, compressor, open door, high/low temperature with voltage protection, tempe...
I need a production-ready printed circuit board for a compact consumer-electronics tracker. The board has to combine Bluetooth connectivity for smartphone pairing, GNSS positioning for global location data, a LoRa module for long-range updates, and a 3-axis motion sensor to wake the unit only when it moves. Everything will run from a single rechargeable battery, so careful power budgeting and a low-power microcontroller are essential. Form-factor will be small enough to slip into a key-tag style enclosure, so component height and antenna placement must be considered from the start. I’m flexible on the exact silicon—Nordic, Espressif, STM, Semtech, etc.—as long as you can justify part choice against current draw, cost and global availability. Please take the design from ...
I have several gigabytes of raw complex I/Q captures taken across C, X, Ku, Ka and millimetre-wave bands, and I need the information hidden inside them extracted within a week. The job starts with demodulating the bursts, moves through full protocol reversing, and finishes with packet-level inspection that pinpoints the signal type, service provider and any network identifiers. Scope of work • Focus on satellite and MMWave waveforms—no vendor documentation is available. • Wireshark is the preferred environment for final packet dissection; use any supporting tools you like (GNU Radio, URH, inspectrum, etc.) along the way, provided the workflow remains reproducible. • Convert the raw I/Q into clean baseband, map the frame structure, decode the traffic and load it ...
Hi, here is the complete project Objective Design and simulate a compact microstrip patch antenna Target specifications: - Frequency: 2.45 GHz (ISM band - Size: < 15-20 mm (very compact - Thickness (substrate): < 0.8-1 mm - Type: Miniaturized Simulation requirements: - Achieve S11 < -15 to -20 dB at ~2.45 GHz - Impedance matching to 50 ohms - single clear resonance (no multiple unwanted dips Deliverables: - Final CST project file (.cst - S11 plot (1-5 GHz range - Timeline: - Need completion within few hours (urgent Please let me know once you review this and if we can proceed, I'lI confirm immediately. Thank you.
Project Title: Computer Vision Expert for Eye Motion Detection (Mobile App - Closed-Eyelid Tracking) Project Overview We are looking for a highly skilled Computer Vision / AI Developer to build a specialized motion detection module for a mobile application. The core objective is to detect and quantify eyeball movements by analyzing video footage of a subject’s closed eyelids. Technical Challenge: "Bulge Tracking" Unlike standard pupil tracking, this project requires analyzing the movement of the eyeball "bulge" underneath the closed eyelid. The solution must be hardware-agnostic, working with standard smartphone RGB cameras under normal lighting conditions, without the need for specialized IR sensors. Key Deliverables & Requirements 1. Motion Detection: Identi...
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Expert Mobile Developer: Infrared Eye-Tracking & Nystagmus Detection (Computer Vision). Project Overview: We are seeking a high-level Mobile Developer/Computer Vision Engineer to build a specialized module for a vertigo diagnostic support application for smartphones. The core task is to capture and analyze Nystagmus using the device's internal infrared sensors. Scientific Context: Nystagmus is an involuntary, rhythmic oscillation of the eyes caused by vestibular (inner ear) dysfunction. While vertigo is the subjective sensation of spinning, nystagmus is the objective clinical evidence. Capturing this in total darkness is essential to prevent "visual fixation" which can suppress the symptoms. Key Responsibilities: 1. Mobile IR Capture: Access internal IR sensors (e.g., i...
I’m building a single-phase grid-tie solar inverter around the STM32F103 and need both the hardware completed and the firmware written. The control board must handle MPPT, keep perfect grid synchronization, and expose real-time data for remote monitoring. Firmware requirements • Implement a reliable MPPT algorithm suited to PV strings. • Keep the inverter phase-locked to the utility, injecting power with a clean sinusoid and rapid anti-islanding response. • Expose operating metrics (voltage, current, power, temperature, fault states) through Modbus, CAN bus, and Ethernet. Hardware requirements • Schematic and PCB layout for the STM32F103 control board, opto-isolated gate-drive interfaces, sensing circuitry, surge protection, and communication ports. ...
I’m refining a set of custom boards that combine an FPGA-based signal generator with several ESP32 modules. The immediate gap is in analog and digital circuit design: I need a fresh set of eyes to review, debug, and improve the front-end and conditioning stages so our multi-channel waveforms stay clean from kHz up into the low-MHz range. You will also find yourself touching the programmable logic; I use both VHDL and Verilog, so fluency in either (or ideally both) is welcome when tweaks to the signal-generation core are required. On the microcontroller side each ESP32 handles data processing, manages communication protocols, and drives attached peripherals, all written in C/C++. Expect to dive into that firmware whenever hardware changes ripple upward. Key objectives • A...
I’m developing a smartwatch-style device and need a compact micropatch (microstrip patch) antenna that operates reliably at the 2.4 GHz Wi-Fi/Bluetooth band. The form factor has to suit a wearable, so low profile, light weight, and body-proximity tolerance are all important. What I need from you: • A complete electromagnetic design of the patch, dimensioned for common FR-4 or flexible substrates and tuned for 50 Ω matching at 2.4 GHz. • Full-wave simulation files (HFSS, CST, ADS, or similar) showing S11 below –10 dB, realistic radiation efficiency, and a clear far-field pattern when mounted on a small ground plane typical of a watch. • Fabrication-ready outputs—layout, Gerber/ODB++, and a concise design report explaining the stack-up, matching me...
**Title:** IoT Hardware Engineer / PCB Designer Needed for Smart Water Tank Level Monitoring Device **Description:** We are looking for an experienced **IoT hardware engineer / PCB designer** to help us design a **smart water tank level monitoring device** for residential, building, and remote-site use. The product will measure the water level inside a tank and send alerts when the level becomes **low**, **high/full**, or when there is a **sensor/device issue**. We are seeking a professional who can take this from **system architecture and component selection** to **schematic, PCB layout, and manufacturing-ready files**. **Preferred product direction:** * Non-contact level sensing (preferably **ultrasonic**, top-mounted) * **Wi-Fi version** for homes/buildings * Optional **NB-IoT / LT...
I need a matched transmitter-receiver pair built around a 200 kHz carrier that can cover at least 40 m in open air and recognise simple OOK (On-Off Keying) pulses reliably. The intended application is “Radio Frequency RF”, so there is no higher-level protocol to worry about; raw, clean carrier switching will do the job. Everything will be mounted and operated outdoors, so the design must tolerate ambient temperature swings, sunlight and occasional moisture without detuning or loss of sensitivity. Both TX and Rx are separate not transceiver and battery powered with minimum 2 days running time. What I am looking for • Circuit-level design of both the low-power transmitter and the super-regen/ super-het (designer’s choice) receiver, including complete schematics, PCB...
I need an interface connector for carrying sensor readings from Ultrasonic datalogger by Modbus cable RS-485 with a male connector. The PCB interface is to be built with a 6-pin military female connector at one end and printer cable connector at the other end that will be used to connect to a laptop USB port to download the data (Refer to picture attached). Requirements: - Use a female 6 pin military connector (standard adapter) for the military connector and a female print cable connector on the other end, with PCB in between - No custom cable is needed - Ensure compatibility with Modbus protocol - Encapsulate the PCB into aluminium pot or similar for robustness Ideal Skills and Experience: - Expertise in Modbus communication - Experience with military and printer cable connectors - ...
I need a complete high-frequency trading (HFT) strategy for actively-traded equities. The solution must be built around three data pillars that I already have in place: extensive historical tick data for back-testing, a low-latency real-time market feed for live decisions, and curated news feeds for event-driven signals. Your job is to transform these inputs into a production-ready strategy that can ingest the streams, react within microseconds, and handle the entire trade life-cycle—from signal generation through execution and risk checks—without human intervention. Deliverables • Strategy logic and mathematical model, fully documented • Back-test framework wired to my historical data, with reproducible results • Low-latency execution module that plugs...
I need a full on-site Wi-Fi survey carried out in a commercial building using an Ekahau Sidekick and the latest Ekahau software. The sole objective is to capture accurate signal-strength data throughout the premises so I can visualise coverage, spot dead zones, and back up any upgrade decisions with hard numbers. During each walkthrough please log not only RSSI values but any factors that could be degrading the signal. I am particularly mindful of three common culprits—electronic devices that radiate noise, structural obstacles such as reinforced walls or tinted glass, and neighbouring networks that may be crowding the same channels—so be sure these are annotated in the project file. At hand-off I expect: • The complete Ekahau project file (.esx) with all raw measureme...
Need help for two questions cadence spice simulation budget 30$ plz check the attachment
I am building a grid-tied solar inverter and need a seasoned embedded designer to deliver complete, production-ready firmware for both an STM32F103 and a TMS320F28035. The inverter must connect seamlessly to the grid, track maximum power from the panels, report its status remotely, and shut down safely if it detects islanding. To achieve this you will configure and optimise the following on the STM32: • ADC – fast sampling of panel and grid voltages/currents for control loops • PWM – generation of high-resolution switching signals for the full-bridge stage • UART – bidirectional link for remote monitoring, logging and field updates On the TMS320 you will implement the high-speed control algorithms (MPPT, PLL, anti-islanding logic, grid-synchronis...
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