Patent ID: 8693876
Filing Date: 2014-04-08
Classification: H04B,H04L

Abstract:
1. A high-speed signal generator comprising: a digital signal processing (DSP) block for generating a set of N (where N is an integer and N≧2) parallel digital sub-band signals, each digital sub-band signal having frequency components within a spectral range between 0 Hz and ±Fs/2, where Fs is a sample rate of the digital sub-band signals; a respective Digital-to-Analog Converter (DAC) for processing each digital sub-band signal to generate a corresponding analog sub-band signal, each DAC having a sample rate of Fs/2; and a combiner for combining the analog sub-band signals to generate an output analog signal having frequency components within a spectral range between 0 Hz and ±N·Fs/2; wherein the digital signal processing (DSP) block comprises: