測向 的英文怎麼說
中文拼音 [cèxiàng]
測向
英文
direction finding and distance measuring- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
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The characters of this device were high sensitivity, wide - angle warning resign, accurate azimuth angle of the coming laser and low wrong - warning rate
此激光預警器的特點是靈敏度高、視場寬、測向精度高,且虛警率極低。A pigeon probably has his huff duff in that incrustation above his beak.
鴿子也有它的無線電高頻測向儀,也許就是它喙上部的那個硬包吧。Before using phase - only algorithm to achieve nulling, estimations of the number of interferential sources and the doa of interferential signals are needed. so, the spatial spectrum estimation basd on the maximum likelihood method ( capon method ) and music algorithm used for detecting the number of interferential sources and the doa of interferential signals are discussed in the second chapter
在採用phase - only演算法進行波束置零之前,需要估計干擾源的方向和個數,因此本文還在第二章介紹了發射數字波束形成中用於測定干擾源個數和方向的空間譜估計法? capon演算法和music演算法的測向原理,並分析了它們的性能和優缺點。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。The main work of the first part includes : introducing some methods of underwater sound positioning and analyzing their performance, analyzing the theory of measuring direction and distance of the target by three elements symmetrical and dissymmetrical array, comparing the measuring error of two kinds of array, and giving the theory of the generic arrays and discussing the phase wrapping and the distance wrapping in passive ranging
對被動測距技術的研究工作主要包括:簡單介紹了水聲定位的幾種方法,並對其性能進行了分析對比,分析了三元對稱陣和非對稱陣測向測距的原理,對兩種陣型的測向測距誤差進行了對比分析,還給出了一般陣型測向測距原理,最後還對被動測向測距中存在的相位模糊和距離模糊問題進行了探討。In this thesis first the research the sr - df algorithm under the arbitrariness antenna array, which is based on the algorithm of music, second the algorithm has been put into realization on the hardware, so that in the later to embattle the antenna can reference to this thesis
本課題對比較適合的任意形狀天線陣進行了研究,在趨于成熟的music演算法的基礎上,研究任意形狀超分辨測向天線陣通用演算法,然後對該演算法進行硬體的實現。They reported this direction to the direction-finding evaluation subsection.
他們把這個方向報告給測向分析小組。Huber diffraktionstechnik gmbh & co. kg deals in turntables, goniometer as well as in cradles weighing
為您提供關于量角器、測角計、測向器和機械操縱的信息。The enterprise beijing zhongke moshi dafang science and technology co., ltd. offers among other things goniometer and machine control
公司專業從事量角器、測角計、測向器、評判以及反射器和視頻照相機業務。Function test and calibration self - heterodyne curve for direction finder on sea trial
航行試驗中測向儀效用試驗及自差曲線校正。Automatic radio compass
自動無線電測向儀Performance requirements for shipborne radio direction finder
船用無線電測向儀性能要求Automatic radio direction finder
無線電自動測向器Visual radio direction finder
目測式無線電測向儀Very high frequency direction finder
甚高頻測向儀Very high frequency direction finding
甚高頻測向Very high frequency direction - finding
甚高頻測向As a traditional method, the phase - comparison method has a merit of low cost but a demerit of poor bearing accuracy
比幅測向法是一種傳統的方法,它的最大優點是價格成本較低,但測向精度較差。So, deep - through analysis of the phase - comparison method and adoption of new evaluation methods is to be done to increase the bearing accuracy and achieve the best price performance, satisfying the equipment requirement of navy
因此對它進行深入的研究和採用新的估算方法來提高其測向精度,使性價比達到最優,以滿足海軍裝備的需求。On the theory of bearing cross localization, the algorithm puts forward nonlinear equations of bearing and position variables, then convert the nonlinear equations to linear equations, and finally gives multiple - vessel localization algorithm based on least squares theory and considering bearing accuracy factors
該演算法的實質是基於多艦偵察設備的測向角度、位置信息,利用純方位交叉定位原理,建立非線性觀測方程;通過泰勒展開將非線性系統轉化為線性系統;利用最小二乘原理並考慮測向精度的權重因素,提出了多艦的定位模型。分享友人