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GPS receiver testing system of communication network mobile platform and testing method thereof

A technology of GPS receiver and communication network, which is applied in the direction of radio wave measurement system, satellite radio beacon positioning system, transmission system, etc., and can solve the problems of low degree of automation and complicated test operation of GPS receiver

Inactive Publication Date: 2005-02-23
HISENSE +1
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of complicated test operation and low degree of automation of the GPS receiver of the mobile station, and to provide a system and a test method thereof capable of automatically testing the radio frequency index of the mobile station with GPS positioning function. The invention can calibrate the accuracy of the relative position positioning and absolute position positioning of the GPS receiver of the mobile station, and complete the identification of the sensitivity of the GPS receiver of the mobile station

Method used

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  • GPS receiver testing system of communication network mobile platform and testing method thereof
  • GPS receiver testing system of communication network mobile platform and testing method thereof
  • GPS receiver testing system of communication network mobile platform and testing method thereof

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Embodiment Construction

[0023] As shown in Figure 1, the test system includes a GPS signal generator, a base station integrated simulator, a frequency counter, a power divider, a shielding box, a communication DC power supply, and an automatic test device. The GPS signal generator is the GPS signal generation part, which can generate The GPS signal that the mobile station can search, the base station integrated simulator is the time reference of the system, it provides the time reference for the whole system, usually need to connect its 10Mhz time reference port with the frequency counter and GPS signal generator with the same length of cable At the same time, it simulates the base station, provides synchronization signals for the system, and can establish a call connection with the mobile station. The function of the frequency counter is to measure the synchronization time difference between the 1PPS output signal of the GPS signal generator and the even-second output signal of the base station integr...

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Abstract

The GPS receiving system is composed of the GPS signal generator, the base station synthetic simulator, the frequency counter, the power allotter the shielding box and the communicating direct current and the automatic testing apparatus. The apparatus includes: The AGC testing module, the Doppler frequency bias calibrating module, the testing module of sensitivity, and the calibrating module of the error.

Description

technical field [0001] The invention relates to a CDMA communication network and a GPS global positioning system in the field of mobile communication, in particular to an automatic test system and a test method for a GPS receiver of a mobile station. Background technique [0002] With the rapid development of the mobile communication industry, the application of positioning technology in mobile stations is a potential application, and its technology is developing rapidly. The global positioning system receiver (GPS) is composed of 24 satellites, which has the advantages of high accuracy, fast positioning speed, good concealment performance, simple equipment, and low cost. Due to the good performance of GPS, the GpsOne solution of Qualcomm has been widely used in China Unicom's CDMA communication network. [0003] At present, the GPS receiver test program of the mobile station is based on several test tools such as QXDM / QCAT and QPST of Qualcomm, and uses the IS-801 protocol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01S19/23H04B17/20
Inventor 李松张国义陈海燕李勇张芒
Owner HISENSE
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