Argos Consulting LLC

Honolulu, Island of Oahu, Hawaii, USA

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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!

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
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Image attribution: US Navy, Freepic, Northrop-Grumman, Lockheed-Martin, TensorArt, Xilinx, Shutterstock, Iridium