Communications and Radar
Areas of Expertise:
- DSP: FIRs, transforms, frequency conversion, etc.
- Mod/demod: (N)-PSK, DSSS, MSK/
OQPSK, etc. - Phase tracking/
carrier recovery : PLLs, Costas loops, symbol tracking, etc.- Radar: Pulse generation/
detction, beamforming, STAP - Mathematical analysis and simulation
And, of course, Matlab/Simulink Of course! - Phase tracking/
Communications systems, and more recently radar, are a particular specialty of ours. We bring decades of experience and a history of many successful projects in areas that include:

One time we put together an Iridium-based SATCOM data link while sitting at our mother's back
patio. Not kidding!
- Space, satellite and terrestrial communications
- Commercial, military and aviation applications
- FPGA implementation of DSP and comms algorithms

Our digital receiver designs typically achieve performance within less than 1 dB of the theoretical maximum.
In addition to the usual FIR's, correlators, complex mixers and whatnot, we also show a knack for applying less-common or unconventional elements to our designs, such as:
- Custom Farrow filters with arbitrary bandwidth and delay resolution
- Cartesian loops for predistortion correction of nonlinear amplifiers
- Transform-domain excision of narrowband interference
- Parallel phase-tracking loops to increase the tuning range of DPSK systems before message detection
A selection of projects from over the years:

Did we mention SATCOM?