| 摘要: |
| 根据全球定位系统(GPS)的信号特点，介绍了GPS接收机利用L1频段C/A码进行伪码测
距的原理和方法，提出了一种简单、易行的位同步环设计
方法，并与传统设计方案进行了对比。最后，对影响伪距测量值的因素进行了讨论，给出了
误差计算的方法，分析了对测距精度的影响。 |
| 关键词: GPS接收机 伪码测距 位同步 电路设计；误差分析 |
| DOI：10.3969/j.issn.1001-893X. |
|
| 基金项目: |
|
| Pseudo Code Ranging Method and Precision Analysis of GPS Receiver |
| XIA Jun |
| (Chengdu Spaceon Technology Co., Ltd,Chengdu 611731,China) |
| Abstract: |
| According to the signal characteristics of GPS(Global Positioning System),the pr
inciple and method of GPS receiver pseudo code ranging by using C/A code at L1 b
and are introduced.A simple and easy method is proposed for bit synchronization
loop and is com
pared with traditional methods.Finally,the factors influencing pseudo coding ran
ging value are discussed,error estimation method is given,and the influence on r
anging precision is analysed. |
| Key words: GPS receiver pseudo code ranging bit synchronization circuit design error |
《电讯技术》编辑部 