内置精确指向能力的GPS接收器

IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences Pub Date : 1990-03-20 DOI:10.1109/PLANS.1990.66161

R. Brown, P. Ward

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引用次数: 26

摘要

描述了一种使用单五通道AN/PSN-9 GPS接收机的全球定位系统(GPS)指向实验，该接收机专为军用背包/车载应用而开发。AN/PSN-9基本上是每通道双端口设计，通过使用通用硬件来执行两个GPS天线的GPS差分相位测量，从而实现最小的硬件和最高的指向精度。本文描述了相位双差模糊的求解方法，并给出了在天线波束任意移动的情况下，指向解在10秒内收敛的结果。基于AN/PSN-9 GPS指向单元的滤波、无二义相位双差观测值的指向估计表明，仅在1米的天线基线距离下，就有可能实现0.5-mr(0.3度)的AZ指向精度

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A GPS receiver with built-in precision pointing capability

A Global Positioning System (GPS) pointing experiment using a single five-channel AN/PSN-9 GPS receiver developed for military manpack/vehicular applications is described. The AN/PSN-9 basically a dual-port per channel design, which results in minimum hardware and highest pointing accuracy by using common hardware to perform the GPS differential phase measurements from two GPS antennas. Procedures to solve for the phase double-difference ambiguities are described, and results are presented which demonstrate pointing solution convergence in less than 10 s with arbitrary movement of the antenna beam. Pointing estimates based on filtered, unambiguous phase double-difference observables from AN/PSN-9 GPS pointing unit indicate the potential of achieving 0.5-mr (0.3 degrees ) AZ pointing accuracy with only 1-m antenna baseline separation.<>

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IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences

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