aperiodic system 中文意思是什麼
aperiodic system
解釋
非周期體系-
Joint angle and delay estimation based on uniform circular array in cdma system with aperiodic spreading code
非周期擴頻系統中基於均勻圓陣的角度和時延的聯合估計 -
First of all, correlation properties of orthogonal variable - length spreading sequences are analyzed and new closed - form expressions of mai of the cdma systems are derived in terms of aperiodic partial correlation of variable - length sequences. then, the self - interference ( si ), mai and bit - error - rate ( ber ) performance of the desired user in a multi - rate cdma system are analyzed
本文首先分析了正交變長擴頻序列的相關特性，導出了以變長序列非周期部分相關表示的cdma系統多址干擾（ mai ）新的分析表達式，並分析了多速率碼分多址系統中，期望用戶的自干擾（ si ） 、多址干擾和誤比特（ ber ）性能。 -
Finally, the results are compared with periodic and random chains. then we studied acoustic wave propagation in 1d quasiperiodic and aperiodic systems by means of he transfer matrix. transmission rate, reflection rate, energy flow, logarithmic energy flow, energy density and lyapunov exponent are computed numerically, and compared with periodic and random system
其次研究了聲波在幾種一維準周期和非周期系統中的傳播，通過轉移矩陣的方法，數值地得到了系統的傳播系數t _ n 、反射系數r _ n 、能流密度j _ n ，能量密度e _ n和lyapunov指數，給出了以上各量與傳播長度n以及頻率之間的關系，同時發現能流及能量密度都具有分形結構，並與周期和隨機系統的結果作了比較。 -
This thesis investigates the application and implementation of adaptive array based on mmse criteria in the presence of strong man - made interferences and aperiodic spread spectrum codes, including reference signal generating, afc in adaptive antennas array, and an application of adaptive antennas for a general non - spread spectrum signal, ssb ( single sideband ) communication system is presented. the thesis is outlined as follows
論文研究了在強人為干擾和非周期擴頻碼情況下，基於mmse準則的擴頻系統自適應天線陣的實現和應用問題，包括參考信號提取、自適應天線陣中的afc ，並給出了在非擴頻信號單邊帶ssb （ singlesideband ）信號通信系統中的自適應天線的應用。
分享友人