Abstract: Methods and apparatus for reducing discrete power spectral density (PSD) components of wideband signals transmitting blocks of data are disclosed. Discrete components are reduced by acquiring N symbols of pseudo-random data, each symbol having K bits; selecting one bit from each of the acquired symbols to generate N selected bits; selectively inverting a respective element in one of the data blocks responsive to the selected bits; acquiring one or more bits of pseudo-random data to replace a corresponding one or more respective bits of the acquired N symbols of pseudo-random data; and repeating for successive blocks of data.

Abstract: Methods and apparatus for reducing discrete components of an Ultra Wideband (UWB) signal that includes source data having a repetitive component are disclosed. The discrete components are reduced by scrambling at least a portion of the repetitive component of the source data, inverting the source data according to a predetermined inverting function, and preparing the scrambled and inverted source data for transmission.