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1、GPS接收機(jī)測試應(yīng)用指南隨著GPS技術(shù)的應(yīng)用日漸普及,GPS接收機(jī)制造商、OEM集成商和合同制造商正在尋找適合的標(biāo)準(zhǔn)測試來驗(yàn)證GPS接收機(jī)性能。驗(yàn)證過程需要在一個(gè)便于精確重復(fù)測試的可控環(huán)境中進(jìn)行。大多數(shù)情況下,使用通過天線接收到的真實(shí)GPS衛(wèi)星信號(hào)無法提供這樣的環(huán)境。本文討論了目前在GPS接收機(jī)驗(yàn)證中采用的典型GPS接收機(jī)測試。另外,文中還介紹了一個(gè)實(shí)時(shí)的GPS信號(hào)仿真應(yīng)用軟件和平臺(tái),它能夠生成所需的GPS信號(hào),創(chuàng)建一個(gè)靈活且可重復(fù)的測試環(huán)境。目錄序言.....................................................
2、................................................................................................3導(dǎo)航信號(hào)......................................................................................................................................3GPS技術(shù)........................................
3、..............................................................................................4輔助GPS(A-GPS).......................................................................................................................4GPS測試要求...............................................
4、..............................................................................4GPS接收機(jī)基礎(chǔ)........................................................................................................................4GPS天線....................................................................
5、..................................................................5GPS接收機(jī)驗(yàn)證........................................................................................................................5GPS衛(wèi)星仿真..............................................................................
6、.....................................................5GPS測試的類型..............................................................................................................................6首次定位時(shí)間(TTFF)................................................................................
7、.................................6將GPS接收機(jī)連接到GPS信號(hào)發(fā)生器...............................................................................8沒有外部連接的接收機(jī)....................................................................................................8具有外部連接的接收機(jī)............................
8、.................................