Patent ID: 6735238
Filing Date: 2004-05-11
Classification: G01S,H04B,H04L

Abstract:
A system for suppressing self-noise in an ultra wideband wavelet transmitter, comprising:a first differential mixer having a first input, a second input and an output, said second input being a differential input having a first differential input and a second differential input, said first input being configured to receive non-return-to-zero data from a source; a second differential mixer having a first input, a second input and an output, said second input being a differential input having a first differential input and a second differential input; an exclusive OR circuit having a first input configured to receive said data, a second input configured to receive a noise from a noise source, and an output; and a pulse generator configured to generate a pulse sequence having at least two pulses in a predetermined pattern; wherein said non-return-to-zero data source and said noise source being input to said exclusive OR circuit, said output of said exclusive OR circuit being input to the first input of said first differential mixer, at least one of said at least two pulses generated by said pulse generator being input to the first differential input of said second input of said first differential mixer, and a different at least one of said at least two pulses being input to the second differential input of said second input of said first differential mixer, said output of said first differential mixer being input to the first input of said second differential mixer, said noise being input to the first differential input of said second input of said second differential mixer, and said output of said second differential mixer providing said ultra wideband wavelets.