一种适应多DSP应用的动基座对准滤波分布式计算方法

工程实际应用受限于DSP芯片在线解算能力、器件精度的约束,无法在短时导航周期内完成大量高精度迭代运算,尤其一般的单DSP芯片无法满足系统庞大的数字处理需求和实时性要求,只能采取调整算法或者在软件上降低计算精度来让步处理,增加了系统复杂度的同时也影响了算法最终的解算精度。利用多嵌入式DSP系统同步处理高效、编程方便和应用程序容易维护的特点,配合一种多元统计的主成分分析方法,设计了分布式滤波计算方法,用于解决动基座对准运算复杂、矩阵计算量大等问题,具有较强的应用价值。

A Distributed Computing Method of Moving Base Alignment Filter Adaptive to Multi-DSP

Due to its limited on-line solving ability and precision of devices, DSP chip cannot well-perform large amount of high precision iterative operation within short period time of navigation, which has become a constrain for its engineering application. And this can be especially true for single DSP chip which can not meet the enormous demands of digital processing and real-time requirements. Measures taken like adjusting algorithm or reducing the computation accuracy in software instead add the system complexity and affect the solving accuracy of the algorithm. With the advantages of efficienct synchronous processing, convenient programming and easy maintenance, Multi-flushbonding-DSP system is intruduced cooperating with a principal component analysis of multivariate statistics to develop a distributed computing method which can be used to solve the problems of great computational intensity and complexity of moving base alignment and can be of a great applicable value.