基于DSP的高速相控阵波束控制器设计

介绍了基于数字信号处理器(DSP)的宽带延迟线相控阵波束控制器设计方案,提出了一种快速计算波控码的新方法。该方法引入了阵内相位差数据表格,规避了移相值计算涉及的三角函数、除法和浮点运算等复杂计算流程,适于在定点DSP运行。通过计算波束控制码和快速布相,改变了宽带延迟线的真延时,实现了宽带相控阵发射系统的大空间角度波束扫描。

Design of High-speed Phased Array Beam-controller Based on DSP

This paper introduces the design scheme of wideband delay line phased array beam-con- troller based on digital signal processor （DSP）, brings forward a new method to calculate beam control code rapidly. This method introduces data table of intra-array phase difference, evades the complex calculating flows referring to shift phase calculation, such as trigonometric function, divi- sion and floating-point calculation,etc. , fits in with fixed-point DSP operation. By calculating beam control code and rapidly distributing phase, the real time delay of wide-band delay line is changed, and beam scanning of wide-band phased array transmitting system under the condition of wide space angle is realized .