摘要: Digitally coded radar waveforms can be used to obtain large time-bandwidth products (pulse compression ratios). It is demonstrated that periodic with zero sidelobes or almost defined. A perfect code a whose autocorrelation function has and amplitude uniform (maximum power efficiency=1). An asymptotically the property as number of elements in goes infinity its efficiency one. The authors introduce class are either codes. These called reciprocal codes because they derived through linear transformation known aperiodic performance examined. >