Discretization Process Impact on Compressed LFM Signal Parameters

Digital signal processing is a backbone of a modern radar receiver. Signal discretization and its side effects have significant influence on radar performance. It makes crucial the awareness of the effects, as well as its qualitative and quantitative evaluation. The paper presents the problem of random displacement effect of pulse beginning in accordance to the closest discrete time value. This effect has strong impact on characteristics of pulse compression filter. Characteristics evaluation of the discretization process has been performed on the base of proposed discrete time generation algorithm. The testing results are shown, as well as its discussion and some practical conclusions.