Software-defined radio development
SDR systems pair RF hardware with signal processing that lives in software and FPGA logic, so the radio can change without a hardware respin. Northwest DSP helps teams architect, integrate and validate those systems, from the transceiver to the waveform.
Common problems
Representative situations this work addresses. They describe the kind of work, not completed client projects.
The waveform works in simulation but not on the radio
Model, RTL and captured I/Q compared step by step to find where they diverge.
It is unclear what belongs in the FPGA, the processor or the host
Throughput and latency budgets that decide where each function lives.
Transceiver bring-up stalls
Configuration, gain and frequency plans checked against the datasheet and the measured spectrum.
Testing is manual and slow
Automated capture and analysis that gives repeatable results after every change.
Capabilities
Architecture and integration
Choosing where each function lives (RF, FPGA, processor or host) and bringing the pieces up together.
- SDR architecture and development
- RF transceiver configuration and bring-up
- Embedded processor integration
- RF frequency planning
Digital front ends and waveforms
The processing between the converters and the modem, and the waveforms that run on top of it.
- Digital downconversion and upconversion
- FPGA-accelerated SDR processing
- Waveform generation and reception
- Multichannel processing
Test and validation
Proving that what worked in simulation works on hardware, and keeping it that way.
- SDR test and measurement automation
- I/Q capture and analysis
- Hardware-in-the-loop testing
- BER and sensitivity measurement
Typical deliverables
Scoped in each statement of work. You keep everything listed for your project.
- System architecture and interface definition
- Reference models of the signal chain
- FPGA and software source
- Bring-up and configuration scripts
- Automated test scripts
- Measured results and technical report
Ways to start
Technical architecture review
An independent review of a proposed or existing signal chain, with findings and recommendations in a written report.
Receiver performance investigation
Finding where a receiver loses performance by comparing the model, the RTL and measured data.
Prototype development
A working prototype of a waveform, modem or SDR function, carried from model to hardware within an agreed scope.
Each engagement is scoped and quoted in writing. See all ways to start.
Have a project in mind?
Describe what you are building and where you are stuck. You will hear back from Mike directly.
