Signal Processing Jobs

I am looking for a highly experienced embedded + analog design engineer to develop a high-precision sine wave generation system with real-time USB control. This is a result-driven project focused on delivering a working, validated prototype, not just schematics. System Requirements 1. Sine Wave Generation DDS-based solution (e.g., AD9833 or better alternative – developer may choose) Frequency range: up to ~10 kHz (focus on stability, purity, low distortion) Proper analog filtering required (low-pass) 2. Amplitude Control Controlled via DAC (e.g., MCP4822 or equivalent – developer may choose) Adjustable via PC interface (not continuously dynamic) Stable and calibrated output expected 3. Offset Control (Critical Feature) Real-time adjustable DC offset via USB interface Update ra...

I'm looking for an expert to enhance the integration between a BCI headset and a robotic arm. The goal is to improve system reliability and accuracy after neural drift. Key Requirements: - Expertise in BCI technology and robotic systems - Strong signal processing skills - Experience in systems integration - Ability to deliver detailed project proposals Please apply with a comprehensive project plan.

I need a compact-footprint PCB that runs on a solid 12 V input and plugs straight into Ethernet so it can sit inside my equipment rack and let the rest of my system know everything is still alive. The board’s sole job is to send a small heartbeat packet at set intervals and, if the link ever drops, push an immediate network-status alert that my database can log. Remote-monitoring bells and whistles are not required right now; reliable data transmission and clear link reporting are the priorities. You can choose the silicon you are most comfortable with—an MCU with an integrated MAC/PHY, an external PHY hanging off an ESP32, or another combination—so long as it boots quickly, keeps the BOM lean, and exposes a straightforward way for me to adjust the heartbeat interval lat...

This task is for generating a KiCad v10.0 schematic from a given PDF. And if someone wants to also generate the pcb layout for it is welcome but the budget is very tight. There is an unfinished KiCad project that has the parts in schematic though the schematic has no connections, just the parts, also their footprints are/do exist in a pcb layout but without traces connecting them. I would like to have also the complete pcb layout generated but I want to keep the cost for now really low so I can accept just the schematic work. If someone though wants to bid for both schematic and layout then I could consider if the bid suits my budget. Please specify in your bid if it is for schematic only or for layout too. The schematic has FPGA/ADC/DAC/CODEC/CLOCK/POWER/etc spread in 12 pages, whoever w...

I need a single 2-layer PCB designed, fabricated, and assembled for a compact ultrasonic microphone jammer demo unit. The device emits a frequency-modulated 24–26 kHz ultrasonic signal that disrupts MEMS microphone recording on nearby phones. This is a privacy/anti-eavesdropping demo unit. The circuit design, schematic, netlist, and firmware are ready — I need PCB layout, fabrication, and assembly. What I Have (Will Be Provided) Complete circuit schematic (PDF, A3) Netlist with all connections and component references Bill of Materials with exact part numbers and footprints Firmware source code (Arduino .ino for ESP32-C3 Super Mini) Reference design from open-source project (mcore1976/antispy-jammer on GitHub) Circuit Summary Signal chain: ESP32-C3 Super Mini → AD9833 DDS ...

I need a compact, reliable PCB that will sit at the heart of an industrial-grade system and exclusively handle digital signal processing. The board should be engineered for the harsher electrical noise and temperature ranges typical on a factory floor, yet still remain cost-efficient to assemble at scale. ----------------------------------------- Required:- Required a freelancer for a project of manufacturing a PCB. The requested job is to produce Gerber files from schematic drawing (KiCad), Bill of materials, and AutoCAD drawing of main components layout -------------------------------- Key goals • Clean, low-jitter routing for high-speed digital lines • Component choices that tolerate industrial voltage spikes and vibration • Footprints, clearances, and stack-up rea...

I need an engineer who can take my functional requirements and turn them into clean, synthesizable SystemVerilog that runs on the DE-10 FPGA kit. The work covers the full RTL flow—coding the logic, building self-checking test-benches, running ModelSim simulations, and closing on timing before hand-off. You are free to follow your own coding style so long as the code is readable, well-commented, and synthesizes without warnings. The critical point is that every module is fully verified: all corner cases exercised, assertions in place, coverage collected, and a concise report delivered alongside waveform evidence. I’m based in Ho Chi Minh City and would strongly prefer someone who can meet on-site when needed to review schematics, probe the board, and iterate quickly once t...

I am building a full-path DVB-T2 physical-layer simulation in MATLAB / Simulink and need a clean, well-documented model that demonstrates Adaptive Modulation and Coding using Quadrature Amplitude Modulation. The core emphasis is on the modulation scheme itself rather than error-control blocks or post-detection processing, so the model should let me vary constellation orders (e.g., 16-QAM, 64-QAM, 256-QAM) and observe the impact on throughput and BER under different channel conditions. Key elements I need: • A runnable Simulink (.slx) file that instantiates the complete DVB-T2 baseband chain up to the QAM mapper, includes channel impairment blocks (AWGN, fading), and ends with demodulation so I can plot BER and EVM. • Parameter masks or scripts that let me switch constellation...

Heart Rate Data Analysis & Formula Development I am looking for a skilled freelancer with a background in sports physiology, biomedical engineering, or data science to support the development of formulas and algorithms derived from heart rate (HR) and R–R interval data. Scope of Work: The requirement includes deriving and validating formulas for: Heart Rate Metrics Heart Rate (HR) Resting Heart Rate (RHR) Heart Rate Variability (HRV) Parameters RMSSD SDNN pNN50 ln(RMSSD) Training Metrics Heart Rate Zones (Karvonen method) Training Load (TRIMP or equivalent) Time in Zone (TIZ) Heart Rate Recovery (HRR) Sleep & Recovery Metrics Sleep stage estimation (HR/HRV-based) Sleep score modeling Recovery/readiness score Expected Deliverables: Mathematical formulas with clear explanat...

I need a matched RF transmitter-receiver pair engineered from the ground up for remote control operation. When the handheld transmitter is activated, the receiver must recognise a unique code and immediately trigger a defined sequence of actions inside my host device. Reliability, low latency and immunity to casual interference are essential. Here’s what I’m expecting from you: • Schematic and PCB layout for both transmitter and receiver, ready for fabrication. • PCB Gerber files. • Breadboard demonstrating functionality. • Firmware (or discrete logic plan) that decodes the signal and drives the action sequence pins • A succinct test report proving range, stability, and correct execution of the sequence in a lab environment. You are free ...

I want to develop a LabVIEW VI that integrates and synchronizes data from two sources: an Arduino-controlled actuator and a DAQ-based voltage measurement system. The Arduino is responsible for controlling the motion of a stepper motor and continuously outputs position data over serial communication. Specifically, it transmits time and position in a comma-separated format as “time_ms, position_mm” at approximately 50 millisecond intervals. This output has already been verified to function correctly using the Arduino Serial Plotter which I wrote the code for. Also, a DAQ system within LabVIEW is used to measure the analog voltage output from a load cell. This voltage represents the sensor signal and does not need to be converted to force at this stage. The DAQ portion of the sys...

Low Power, High Speed,Area Efficient Multiplier based on the PTL logic style is the project title.I have to implement using cadence virtuoso gpdk090 nm technology and I want improvement of this paper for paper publishment.

I need a control-systems specialist to build a Model Predictive Controller for a wind turbine that I have already represented as a Linear Parameter-Varying (LPV) model in MATLAB/Simulink. The controller must juggle three objectives at once—maximising electrical power output, keeping mechanical stress to a minimum, and sharpening pitch-angle accuracy—while remaining robust to real-world disturbances such as wind-speed fluctuations, grid faults, and the occasional mechanical component hiccup. The core work happens in MATLAB/Simulink: setting up the prediction model, formulating the multi-objective cost function, and implementing hard or soft constraints that reflect turbine limits and grid-code requirements. I will provide the LPV model and any necessary operating data; you desi...

Senior .NET (C#) Developer with WEBRTC and HLS Live Streaming Experience (Freelance) We are building a live streaming and creator engagement platform. The platform allows creators to: go live (public broadcast using HLS) host private 1-to-1 sessions (WebRTC) host group sessions (WebRTC) interact with users via chat(SignalR) receive tips and payments We are looking for an experienced developer who can build scalable live streaming infrastructure using HLS for broadcast and WebRTC for private sessions. Key Responsibilities Develop backend APIs using ASP.NET Core (.NET) Implement HLS-based live streaming pipeline for public broadcasts Integrate video pipeline (FFmpeg / RTMP ingest → HLS output) Work with streaming servers/CDN (NGINX RTMP, AWS Media Services, or similar) Implement We...

I need an experienced PCB designer to convert my schematic diagrams into a multi-layer PCB layout. This PCB is for industrial oil field equipment, and the main goal is to optimize performance. Key Requirements: - Convert provided schematics into a multi-layer PCB layout - Focus on performance optimization - Experience with industrial equipment PCBs is a plus Ideal Skills: - Expertise in PCB design software (e.g., Altium, Eagle) - Strong understanding of multi-layer PCB design - Background in industrial electronics and performance optimization Please provide samples of similar work.

Design and Development of an Active Rectifier for Performance Enhancement of Induction Generator Based Wind Energy Conversion System

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 ...