Influence of Quantization Precision on Digital Receiver
Tao Zhou · Electronic Information Warfare Technology · 2006
Increasing with the demand on both wideband and real-time processing,the performances of digital electronic reconnaissance receiver were limited by the interaction between high-speed sampling with high precision and signal processing of huge data.Now,a solution method is occurred to relax the contradiction by properly decreasing quantization precision.But no paper discussed the influence of quantization precision on digital receiver performances.In this paper,the characters of digital receiver are numerically analyzed,such as frequencymeasurement precision,sensitivity and dynamic range in the case of different quantization precision.Furthermore,The effect of signal-to-noise on the signal power spectrum and instantaneous dynamic range of low-bit digital receiver is proposed.