摘要: |
在现代数字信号处理中不可避免地需要对复数信号求模。文中采用牛顿迭代法,通过对牛顿迭代初始值的优化及除法器的优化设计,在保证计算精度的前提下有敢地降低了求模运算量,并已应用于实际雷达系统中。 |
关键词: 雷达 脉冲压缩系统 信号处理 牛顿迭代法 复数 除法器 |
DOI:10.3969/j.issn.1001-893X. |
投稿时间:2005-12-29修订日期:2006-05-20 |
基金项目: |
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Fast Calculation of Modulus of 16 Bit Fix-point Complex Number Based on FPGA |
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Abstract: |
Calculating the modulus of complex numbers is inevitable in modem digital signal processing. In this paper, the calculations are decreased efficiently and the result has the same precision in calculation by optimizing the initial number of Newton method and design of divider. This method has been used in radar systems. |
Key words: FPGA |