Monolithic FPGA (field programmable gate array) based Chirp Scaling imaging method

The invention provides a monolithic FPGA (field programmable gate array) based Chirp Scaling imaging method. The method specifically includes creating an FFT (fast Fourier transform) operation module, a Doppler center frequency estimating and fitting module, a Doppler frequency modulation slope estimating and fitting module, a parameter calculating module, a Chirp Scaling factor generating module, a range direction compensation factor generating module, an azimuth direction compensation factor generating module, a complex multiplication module, a data transposition module, a core calculation module and an image quantization module on an FPGA, and performing Chirp Scaling imaging according to the created modules. According to the method, the framework for realizing the Chirp Scaling imaging is analyzed, the degree of parallelism of imaging calculation is increased to the uttermost, the advantages of the FPGA can be given full play, and real-time performance of imaging is further improved.