UWB_signal_processing

Ultra-wideband (UWB) signals are signals of duration of nanoseconds in time domain, occupying a very large frequency bandwidth of GHz order. UWB is used for surveillance, detection, positioning and other applications due to its fine temporal resolution and low emission power. This paper presents some signal processing methods for UWB signal such as Envelope Detection via Hilbert Transform, Power Spectral Density Estimation via Welch’s method, Baseband Conversion, Matched Filter and Search Subtract and Readjust algorithm.

The UWB reference signal in time domain:

The signal spectrum before filtering:

The power spectral density of the generated UWB signal:

The envelope detection phase :

The signal after filtering:

The baseband converted signal:

The channel impulse response:

The Search Subtract and Readjust result: