phase ambiguity 中文意思是什麼
phase ambiguity
解釋
相位多值性-
In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits
論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念，並以加速度模糊函數為分析工具，詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。 -
Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used
通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。 -
Analysis the cause of channel disaccord of gain and phase, give four methods of gain and phase calibration, computer simulation illustrate the that the methods are effective. in the chapter 4, the basic relation of phase interferometer of one dimension, two dimensions, and the measurement accuracy and the approach of solving the phase ambiguity in the phase interferometers have been discussed in detail
第四章對相位干涉儀進行了較為詳細和系統的研究，給出一維相位干涉儀的基本關系式，分析了五通道相位干涉儀測向定位演算法及其性能指標，對解相位模糊問題進行了探討，在ccss中模擬了測向演算法，模擬結果證明了演算法的正確性。 -
High precision positioning is based on carrier phase measurements. how to confirm integer ambiguity is very important
以載波相位觀測量為依據進行高精度定位時，整周模糊度的確定是一個關鍵問題。 -
The key problems of gps carrier phase measurement are how to solve the integer ambiguity of gps carrier and how to detect and compensate the cycle slip of gps carrier in the period of navigation process
載波相位測量定位的關鍵問題是如何確定整周模糊度和周跳的探測和修復。本文對此問題展開研究，討論了在載體動態運行環境下，動態整周模糊度問題和周跳的探測與修復問題。 -
Recently, with the development of gps, many researchers pay attention to the aircraft ' s precise entrance and landing through gps carrier phase measurement. the key technology of aircraft ' s precise entrance and landing is gps carrier phase integer ambiguity resolution on the fly
近年來，隨著gps的發展和完善，利用gps載波相位觀測量實現飛機的精密進場與著陸的研究，開始受到人們的關注，而載波相位整周模糊度的動態確定是其中的關鍵技術。 -
Integer ambiguity resolution is the key problem of gps based real - time attitude determination system which use double differencing carrier phase observables
Gps姿態測量通常採用雙差載波相位觀測量，因此整周模糊值解算成為gps實時姿態測量的關鍵問題。 -
A integrated algorithm of ambiguity resolution is proposed. by using triple carrier phase, integer gauss transformations, qr factorization, cholesky factorization, and geometry constraint, the correlation between ambiguity components is reduced, and more error ambiguity can be discarded, also process of ambiguity searching getting rapidly. the ratio test combining constraint of baseline is used to fix ambiguity rapidly
利用三差最小二乘求解模糊度浮點解，然後採用整數高斯變換降低模糊度分量間的相關性，再根據qr分解和基線幾何約束減少需搜索的模糊度組合，採用cholesky分解在搜索過程中及早淘汰不正確的模糊度組合，最後利用ratio檢驗與基線幾何約束條件相結合檢驗模糊度組合，盡快固定正確的模糊度。 -
In this paper, i emphasize the key technology in the aircraft ' s real - time positioning - the method to fix the integer ambiguity of gps carrier phase
本文著重研究機載gps精密定位系統的關鍵技術? ?確定載波相位整周模糊度的方法。 -
This dissertation mainly studies the pulse compression waveform designing and signal processing, including the following aspects : firstly, by the pulse compression basic theory, the linear frequency modulation signal ( lfm ), binary phase - coded signal ( bc ) and stepped - frequency ( sf ) signal are discussed respectively including the ambiguity function, pulse compression and spectrum characteristic
本文主要進行脈沖壓縮雷達波形設計以及信號處理方面的研究，主要體現在以下幾個方面:首先，從脈沖壓縮基本理論出發，分別給出了線性調頻、二相編碼和頻率步進信號的模糊函數、脈沖壓縮以及頻譜特性，對多普勒性能進行了簡要分析。 -
An efficient technique to facilitate gps single frequency phase ambiguity resolution
相位模糊度解算方法 -
Analysis of ambiguity - function of lfmcw radar, including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal. 3. this dissertation advances new theories of lfmcw radar signal detection and estimation, including method for acceleration and velocity estimation based on polynomial phase transform ; method for multi - target acceleration and velocity estimation based on modification polynomial phase transform
包括基於多項相位變換的lfmcw雷達速度和加速度估計方法;基於修正多項相位變換的多目標lfmcw雷達速度和加速度估計方法;基於一般高斯噪聲環境下的lfmcw雷達速度和加速度聯合估計方法;另外提出了基於頻域增采樣內插方法以提高lfmcw雷達測距精度。 -
In angle measuring, an antenna configuration and interferometer ambiguity - resolving algorithm are proposed, and to eliminate the error caused by carrier phase error, a correction method is introduced, through which all ambiguity - resolving error can be recognized and he corrected even when the error probability is up to 0. 42
在測角中，提出了一種干涉儀天線陣結構和干涉儀解模糊演算法，針對通道載波相位誤差可能引起的解模糊錯誤，又提出了一種糾正方法，模擬顯示，在發生解模糊錯誤的概率高達0 . 42的情況下，該方法仍然可以識別並糾正所有解模糊錯誤。 -
Last step is overall adjustment by using multi - epoch absolute and relative results of positioning and timing, in order to improve precision of positioning and timing. ii. some problems about attitude determination and integrity ambiguity resolving by using gps carrier phase are discussed
本論文主要論述了利用星載偽距、載波相位觀測值（含gps和擴展gps ）進行編隊星座運動狀態（位置、姿態和鐘差）整體解算的有關問題。 -
The reasons focusing only on ray travel times are " noise tolerance could be enhanced and the sensitivity to the environment model mismatch may be reduced by neglecting amplitude information ; phase ambiguity is eliminated by employing the group delay of arriving wave packets ; travel times are pseudo - linear functions of sound speed profiles of the medium, and the perturbation of ray travel time is much smaller than sound pressure ' s
之所以選擇聲傳播時間的原因是：噪聲容限可以得到提高，並且傳播時間的計算可以不考慮聲壓的信息，從而降低了對環境模型失配的敏感性；相位的起伏也可通過到達包絡的群延時來消除；傳播時間是介質聲速分佈的偽線性函數並且傳播時間的起伏遠小於聲壓的起伏。 -
Wu, j., s. g. lin and f. g. yiu ( 1997 ), " ambiguity and position search algorithms of gps carrier phase processing, " journal of the chinese institute of engineers, vol. 20, no. 6, pp. 643 - 650
吳究、林孜彥、游豐吉（ 1997 ） ， ?一次差分載波相位餘弦模式用於相對衛星定位? ，測量工程，第三十九卷，第二期，第37 - 55頁。 -
The work of this dissertation is focused on research of some key technics in signal design and processing of mcpc signal. the main content of the dissertation is summarized as follows : it gives a detailed description of the form of the mcpc waveform and its mathematical model, and analyses the formation and properties of phase coded sequence. it discusses the effect of signal parameters on autocorrelation, power spectra and ambiguity function in forms of single pulse and pulse train and compares different kinds of single pulse signals and pulse train signals
本文圍繞著多載波相位編碼信號在信號設計與信號處理的若干關鍵問題進行了研究，主要做了以下工作:描述了多載波相位編碼信號（ multicarrierphasecoded ，簡稱mcpc ）的信號形式，給出了其數學模型，對其中相位編碼序列的構成方式與特性進行了分析;從單脈沖和脈沖串兩種信號形式入手，對多載頻相位編碼信號的參數在自相關函數、功率譜密度和模糊方程上的影響作了詳細地討論，對不同調制方式的單脈沖和脈沖串信號進行了比較。 -
Research on solving phase ambiguity of short - baseline interferometer system. short - baseline interferometer has phase ambiguity in processing of angle measurement, the reason of phase ambiguity and several solutions to phase ambiguity are analyzed in the article, furthermore, a new method that suit to the short - baseline interferometer is proposed ? solving phase ambiguity through frequency conversion, the computer simulation results confirm its effectiveness
在短基線干涉儀測角體制下，存在著測角多值模糊問題，文中除了對測角多值模糊產生的原因及目前存在的幾種解模糊方法進行了簡單分析外，還提出了適用於短基線干涉儀的新方法? ?變頻解模糊方法，計算機模擬驗證了其解角度多值模糊的有效性。 -
Following this, the thesis research digital demodulation of qpsk and analyze the digitalizing means of key module. digitalizing demodulation arithmetic is given. the thesis also researched in phase ambiguity of coherent demodulation, and then brings forward a new method for settling phase ambiguity
而後研究了qpsk的數字化解調，分析了關鍵模塊的數字化方法，給出了數字化解調演算法，並研究了相干解調中的相位模糊問題，提出了一種解決相位模糊的新方法。 -
The principle of angle measurement of short - baseline interferometer is that using phase difference between returning signals to obtain the angle of the target. the method has high precision, but has the phase ambiguity problem inevitably, the article give the explanation to the short - baseline interferometer about these two questions
短基線干涉儀測角的基本原理是相位法測角，即利用系統中不同接收站之間的相位差來獲得目標的方位角信息，具有測角精度高的優點，但卻不可避免的存在著測角模糊的問題，文中對短基線干涉儀這兩個基本問題進行了說明。
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