一种高动态多目标定位系统的信道设计

Channel Design of A High Dynamic Multi-goal Positioning System

为实现高动态多目标系统高精度定位,提出一种信道设计方案。介绍系统结构和工作原理,结合系统需求 分析PN码长、数据传输率的选择,定义帧格式。通过计算输入端所需信噪比,确定信道编码方式,并在此基础上明确信 号结构和码速率。给出相应的伪距计算公式。

To get precision positioning,a novel channel design of the high dynamic multi targets positioning system is presented in this paper.The construction and fundamental principle of the system is simply introduced. According to the system’s requirement,the modulation pattern,the PN sequence is carefully analyzed and the frame structure is decided.The needed signal noise ratio of input port in ideal channel is estimated in theory and a channel encoding scheme is provided to improve data transmission quality to meet with the requirement for the given bit error rate.On this basis,the signal structure and code rate is determined.At the same time the pseudo distance computing formula is presented.