EVALUATION OF AN ULTRA-HIGH SPEED NON-UNIFORMLY WORKING ADC WITH PARALLEL STRUCTURE IN THE SOFTWARE RADAR SYSTEM
In the ultra high-speed sampled ADC system with time-interleaved structure of the software radar, the input signal is sampled non-uniformly because of the sampling-time offset and gain difference of ADC, which product the distortion of the signals, digital spectrum. In this paper, the digital spectrum of the signal sampled non-uniformly is synthetically researched by this ADC with sampling-time offset and gain difference, and derived its digital spectrum representation. A detailed spectrum analysis of the non-uniformly sampled sinusoid is presented to obtain the signal-to-noise ratio. The results of computer simulation that verify the correction of the theory are given. The result provides the useful reference to select the indexes of the software radar system using the ADC with Parallel Structure.
Software Radar DFT SNR
Hemin Sun Weishi Fan Ze Meng
Research institute of Radar Equipment, Academy of AirForce Radar, Wuhan
国际会议
北京
英文
1045-1049
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）