Analysis of synchronization error for time delayed 基于mtf的時間延遲積分ccd
However , ofdm systems are vulnerable to synchronization errors 然而, ofdm系統(tǒng)對同步誤差極為敏感。
However , one of the drawbacks of ofdm is the sensitivity to synchronization error , especially to frequency offset 然而, ofdm一個缺點就是對于同步錯誤非常敏感,特別是對于頻率偏差。
However , it also has two main disadvantages , i . e . , high sensitivity to nonlinear problems and synchronization errors 但ofdm技術(shù)存在著兩個主要缺點:對非線性問題敏感,對定時和頻率偏移敏感。
The diagram becomes locked and the error list window indicates that a synchronization error occurred because checkout was cancelled 關(guān)系圖被鎖定, “錯誤列表”窗口指出由于簽出操作被取消而出現(xiàn)同步錯誤。
Its principles , schemes and performance are illustrated in this thesis . the thesis also analyses the performance of ofdm systems affected by synchronization error 本文簡要介紹了ofdm的基本原理、系統(tǒng)結(jié)構(gòu)和性能,分析了ofdm系統(tǒng)性能受同步誤差的影響。
Because the synchronization error is independent of information signal , the power and frequency of information signal can be equivalent to that of chaotic signal 由于同步誤差與信息信號無關(guān),從而在增大信息信號功率的同時允許其頻率與混沌信號的頻率相當。
When a synchronization error exists , the orthogonality between sub - carriers ca n ' t be maintained , serious inter - carrier interference is introduced and demodulation performance will be degraded greatly 當存在同步錯誤時,子載波之間的正交性遭到破壞,從而引起嚴重的載波間干擾,使解調(diào)性能大大下降。
Triggering time synchronization error model is derived , and based on phase noise model of frequency source , random synchronization error is considered . the effect of fixed and linear error on focusing quality is given by simulation 仿真試驗給出了固定、線性、正弦及隨機型觸發(fā)時間同步誤差對點目標成像指標的影響,同時給出了相應(yīng)的面目標仿真結(jié)果。
The effect of local oscillator syntonization error and triggering time synchronization error on bistatic sar imagery are analyzed based on their error models . useful simulation results are provided for system design 本文重點研究了雙基地sar本振相位同步誤差與觸發(fā)時間同步誤差對成像的影響,建立了誤差模型,給出了仿真試驗結(jié)果,為系統(tǒng)設(shè)計提供了參考依據(jù)。