论文部分内容阅读
一、概述现代 MTD 数字信号处理系统,常在 MTI 后面接上一套具有加权功能的八点 FFT滤波器组,这是提高信号处理系统的一个有效措施。实际设计往往因为这套装置用的器件量大,因而它的应用范围受到一定限制。本设计特地选用了一片 AMD 公司新近生产的 Am29116位片处理器和一片 TRW 公司 MPY—016H 乘法器为基础,并对计算方法和控制方式给予尽可能简化,使得整个装置所用器件量尽可能少的条件下,仍以9微秒时间完成时域加权和8点 FFT 变换及输入输出管理等全部功能,并只要增加一片 Am29116及少量控制元件,其性能还可进一步提高到5微秒内完成。
I. Overview Modern MTD digital signal processing system, often connected to MTI after a set of eight-point FFT with weighted filter bank, which is to improve the signal processing system is an effective measure. The actual design is often due to the large amount of devices used in this device, so its application is subject to certain restrictions. This design is based on a selection of recently produced Am29116 bit-chip processors from AMD and a TRW MPY-016H multiplier, with minimal computational effort and control to minimize the amount of components used throughout the device Under the condition, still time of 9 microseconds to complete time-domain weighting and 8-point FFT transform and input and output management and other functions, and as long as an increase of Am29116 and a small number of control components, the performance can be further improved to 5 microseconds to complete.