Evaluation of compressed sensing in UWB systems with NBI

A method of mitigating interference by narrow band interference (NBI) signals in ultra wide band (UWB) systems, the method comprising:

• mitigating multiuser interference from narrowband interferers operating in a range of 2-11 GHz, wherein at least one multiuser interference interferes with a trained UWB system that uses pilot symbol assisted modulation;
• passing a received UWB signal through a band pass filter (BPF), wherein the BPF is located at a UWB receiver and the received UWB signal is a Hanning modulated pulse centered at 4 GHz frequency;
• measuring a plurality of test functions to determine frequencies of the NBI signals in the received UWB signal;
• determining a number of active users;
• notch filtering the NBI signals, based on the determined frequencies of the NBI signals and the determined number of active users;
• passing the notch filtered NBI signals through a quadratic programming algorithm, wherein the quadratic programming algorithm performs joint decoding;
• estimating an arrival of a UWB payload;
• and
• demodulating the UWB payload, based on the estimated arrival of the UWB payload.