HIGH DYNAMIC GPS RECEIVER USING MAXIMUM LIKELIHOOD ESTIMATION AND FREQUENCY TRACKING.

被引：0

作者：

Hurd, William J. ^{[1
]}

Statman, Joseph I. ^{[1
]}

Vilnrotter, Victor A. ^{[1
]}

机构：

[1] JPL, Pasadena, CA, USA, JPL, Pasadena, CA, USA

来源：

IEEE Transactions on Aerospace and Electronic Systems | 1987年 / AES-23卷 / 04期

基金：

美国国家航空航天局;

关键词：

RADIO NAVIGATION - Performance;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A novel high dynamic Global Positioning System (GPS) receiver is presented and its performance characterized by analysis, simulation, and demonstration. The demonstration receiver is a breadboard model capable of tracking a single simulated satellite signal in pseudorange and range rate. Pseudorange and range rate estimates are made once every 20 ms, using a maximum-likelihood estimator, and are tracked by means of a third-order fading memory filter in a feedback configuration. The receiver tracks pseudorange with rms errors of under 1 m when subjected to simulated 50 g, 40 g/s circular trajectories. The tracking threshold is approximately 28 dB-Hz, which provides a 12-dB margin relative to the minimum specified signal strength, assuming a 3. 5-dB system noise figure and 0 dBi antenna gain.

引用

页码：425 / 437

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