Real-time signal processing in noise radar

In Noise Radar, coherent reception of scattered signals is performed via estimation of cross-correlation between the sampled reference and radar returns. In the paper we present preliminary results of the design and implementation of FPGA-based correlator for coherent reception of noise radar returns. Parallelization of computations in FPGA gives a hope to realize an algorithm in time domain for evaluation of the cross-correlation function, comparable with the frequency-domain algorithm in efficiency. Moreover, implementation of relay-type correlator algorithm gives a hope to implement evaluation of cross-correlation algorithm which might operate much faster. We present comparison of performance and limitations of different considered designs.