navigation n. 1.航行;导航;领航;航海[航空]术。 2.〔集合词〕船。 3.〔古语〕航路;海上交通。 aerial navigation 空中航行。 inland navigation 内河航行。 astro navigation 宇宙航行;天文导航。 blind navigation 仪表导航。 the N- Acts 〔英国〕航海条例。 There has been an increase in navigation through the canal. 通过那条运河的船数增多了。 adj. -al
receiver n. 1.接受者。 2.收税人,收税官。 3.招待人。 4.窝家,收买贼赃的人。 5.应战者。 6.【法律】破产案产业管理人,(争执财产等的)委托管理人。 7.【化学】接收器,容器;【机械工程】蓄汽室,收汽室;接受器;接收机,收报机,收音机,收话机,听筒;电视机,(电视)接收机。 a dual range receiver 长短波收音机。 The receiver is as bad as the thief. 窝家跟贼一样坏。
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 本文以二代卫星导航定位系统为应用背景,着重研究了接收机中的载波恢复技术、 iq非正交对伪码和载波影响的模型、载噪比估计技术。
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 高动态下面临着多普勒频率、多普勒频率变化率较大的问题,给载波跟踪带来了很大困难。本章分析了目前高动态接收机中普遍采用的几种载波跟踪算法,对算法的性能进行了比较。