Design and FPGA implementation of time-frequency transforming for stretch processing

作者：Tan Jian^*; Wen Biyang; Tian Yingwei; Li Ke; Yang Jing; Tian Mao

来源：IEICE Electronics Express, 2014, 11(14): 20140387.

DOI：10.1587/elex.11.20140387

• stretch processing
• pulse compression
• time-frequency transforming
• TDM-DFT
• CORDIC

Stretch processing is an efficient method for pulse compression in chirp radar. A FPGA implementation of time-frequency transforming for stretch is presented. The key point is to calculate the spectrum points of interest using the segmental Time-Division Multiplexing (TDM) Discrete Fourier Transform (DFT), and the CORDIC algorithm is used to compute the complex multiplication. This approach shortens time and reduces memory size relative to FFT.

• 出版日期2014
• 单位武汉大学