例句與造句

1. This dissertation focuses on the carrier recovery in high dynamic navigation receiver , the effect of iq mismatch in direct down conversion receiver and the signal to noise ratio estimator in navigation receiver
   本文以二代衛(wèi)星導航定位系統(tǒng)為應用背景,著重研究了接收機中的載波恢復技術、 iq非正交對偽碼和載波影響的模型、載噪比估計技術。
2. The major work is as following : based on the analysis of signal receiving problems when navigation receiver is in high dynamic circumstance , some typical algorithms such as maximum likelihood estimator ( mle ) , extended kalman filter ( ekf ) , frequency lock loop ( fll ) , digital phase lock loop ( pll ) and frequency extended kalman filter ( fekf ) are deduced
   高動態(tài)下面臨著多普勒頻率、多普勒頻率變化率較大的問題,給載波跟蹤帶來了很大困難。本章分析了目前高動態(tài)接收機中普遍采用的幾種載波跟蹤算法,對算法的性能進行了比較。
3. It's difficult to find navigation receiver in a sentence. 用navigation receiver造句挺難的