五通道低成本GPS接收机

IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences Pub Date : 1990-03-20 DOI:10.1109/PLANS.1990.66177

L. Estes, G. Fain

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引用次数: 0

摘要

介绍了一种低成本船用GPS(全球定位系统)接收机的研制进展情况。所描述的单元是一个高度数字化的，主要是位的，软件密集型的接收器。该单元使用一个射频混频器到基带，一个1位2 mhz模数转换器和5个数字并行信号处理通道。采用AMLE(近似极大似然估计)技术获取信号，并采用低动态环路进行跟踪。给出了设计的一般原则和接收机的描述。

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A five channel low cost GPS receiver

A progress report on a program to develop a low-cost GPS (Global Positioning System) receiver for marine applications is presented. The unit described is a highly digital, mostly one bit, software intensive receiver. The unit uses one RF mixer to baseband, a one-bit 2-MHz A/D (analog-to-digital converter), and five digital parallel signal processing channels. An AMLE (approximate maximum likelihood estimator) technique is used to acquire signals, and low dynamic loops are used for tracking. General principles guiding the design and a description of the receiver are given.<>

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

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