| GPS中频信号模拟器的数学模型及实现 | |
| 李成军 ; 陆明泉 ; 冯振明 ; LI Chengjun ; LU Mingquan ; FENG Zhengming | |
| 2010-05-12 ; 2010-05-12 | |
| 关键词 | GPS(全球定位系统)信号模拟器 GPS接收机 捕获 跟踪 定位解算 GPS (global positioning system) signal simulator GPS receiver acquisition tracking Position fix P228.4 |
| 其他题名 | Mathematical model and realization for GPS IF signal simulator |
| 中文摘要 | 为了给全球定位系统(GPS)软、硬件接收机提供高保真的测试环境,在分析GPS信号传输路径各种影响的基础上,推导了GPS中频信号模拟器的数学模型,提出利用已有星历计算卫星传输时间和仿真误差源的方法,并给出了软件的实现方案。利用软件GPS接收机测试仿真信号结果表明:利用该方法能够正确地模拟中频GPSC/A(粗码)和P(精确码)卫星信号。该方法实现简单,通过增加相应的算法能够模拟各种类型的GPS信号,可以对软、硬件接收机的捕获、跟踪以及测量精度进行测量鉴定,为新技术的应用提供开发环境。; Global positioning system (GPS) IF signal simulators provide high-fidelity measurement environments for GPS software or hardware receivers. Based on analyzing the effects of error sources on GPS signals, the mathematical models of IF simulator and algorithems of computing transmission time by using existing ephemeris are present. A software realization of a GPS IF signal simulator is presented where the simulated signal is processed by a software GPS receiver. Measurement results show that this method accurately simulates GPS IF C/A and P codes. This scheme can be easily realized and expanded to simulate other GPS signals by adding other algorithms for evaluating acquisition, tracking and precision of GPS software or hardware receivers. This method also supports new GPS technology development. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/28181]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 李成军,陆明泉,冯振明,等. GPS中频信号模拟器的数学模型及实现[J],2010, 2010. |
| APA | 李成军,陆明泉,冯振明,LI Chengjun,LU Mingquan,&FENG Zhengming.(2010).GPS中频信号模拟器的数学模型及实现.. |
| MLA | 李成军,et al."GPS中频信号模拟器的数学模型及实现".(2010). |
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