stationary filter 中文意思是什麼

stationary filter 解釋
穩態濾波器
  • stationary : adj. 不動的，靜止的，不變的；不增不減的，固定的，裝定的。n. 1. 不動的人，固定物。2. 〈pl. 〉駐軍。n. -ariness
  • filter : n 1 濾器，濾紙，過濾用料[砂、炭等]。2 【無線電】濾波器；【物理學】濾光鏡，濾色器。vt 過濾，用過濾...
  1. In this paper, the self - adaptive filter, the wavelet transform and the fourier transform are used to detect the stationary and the non - stationary signal of underwater sound in anisotropic noise field

    本文以各向異性噪聲場為例，分別對聲矢量信號中的聲壓、振速探討應用自適應濾波、小波變換、短時傅里葉變換檢測水聲平穩和非平穩信號的應用效果。
  2. This paper studies the characteristic of scatter from moving target in the situation of bistatic sar with stationary transmitter. the wvd method is used in the paper to estimate the doppler frequency parameter of the moving targets ; the wvd - radon method is used to restrain the cross - term. then we can use the result to adjust the parameter of the filter, and to achieve the moving targets imaging of bistatic sar

    本文分析了發射機固定的雙站sar情況下的運動目標回波信號模型，應用wvd變換對發射機固定的雙站sar回波的多普勒信號參數進行估計，並採用wvd - radon變換來抑制wvd的交叉項，以調整濾波器參數，實現發射機固定的雙站sar對運動目標聚焦成像。
  3. An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process

    飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力
  4. In this dissertation, the research trends for the problem have been introduced ; the ‘ dim ’ and ‘ point ’ has been strictly defined in mathematics from machine vision and human vision ; the ideal clutter suppression system based on clutter predication and the realization and evaluation of evaluation index has been studied, in succession the clutter suppression technologies have been researched. firstly, the classic nonparametric algorithm has been analyzed in detail and systematically, for it ’ s weakness that it cannot remove the non - stationary clutter ideally, kalman filter algorithm for clutter suppression in 2d image signal has been built. secondly, fast adaptive kalman filter is presented based on fast wide - sense stationary areas partition algorithm : limited combination and division algorithm based on quarti - tree algorithm, new taxis filter route algorithm which can break through the limitation of the necessity of pixel neighborhood of 2d filter and laplace data model with two parameters which is perfectly suitable for the residual image of kalman clutter suppression

    首先分析了經典的非參數法，對於四種具有代表性的核，從前述的三個性能評價方面做了分析和對比，指出了其速度快的優點和對非平穩圖像適應性差的弱點，針對非參數法的弱點，重點研究了對非平穩圖像適應良好的卡爾曼雜波抑制技術:建立了非平穩圖像的類自回歸模型，在此基礎上建立了二維卡爾曼濾波基礎的兩個方程:狀態方程和測量方程;建立了非平穩圖像準平穩區域快速劃分演算法:基於四叉樹法的有限分裂合併演算法;二維空間的基於k排序的濾波路線演算法，突破了空域濾波路線上區域相鄰的限制;在這些研究的基礎上實現了快速卡爾曼估計，實驗驗證了該方法相對逐點卡爾曼估計可以提高運算速度三倍左右;雜波抑制結果表明傳統的高斯性檢驗並不適合卡爾曼估計后的殘余圖像，由此建立了殘余圖像的雙參數拉普拉斯模型，實驗表明其可以完好的吻合殘余圖像的概率密度曲線。
  5. Chapter 3 considers location of a stationary target. after introducing the nonlinear filtering technique of particle filtering, location algorithm is implemented by particle filtering. on the base of fusing information of bearing and distance, a fast passive location algorithm based on particle filter is got

    在第三章里，在簡單介紹了測向定位的擴展卡爾曼演算法之後，主要研究了一種全新的非線性濾波技術-粒子濾波，並在此基礎了提出了基於粒子濾波的測向定位法和快速定位法。
  6. Based on the memorial characters of restoring forces, the equivalent parameters of the bilinear and bouc - wen hysteretic system were gotten by using stochastic equivalent method. then, both the stationary and non - stationary random response of hysteretic system with cubic rigidity and sticky damp were deduced and calculated. in the research of colored white noise, the filter for shaping the power spectral density was designed and the random state response of enlarged vector was gotten

    對平穩白噪聲，給出了平穩響應的求解方法並對平穩狀態下的模型參數對響應的影響進行了比較與分析;在有色白噪聲的研究里，通過有色白噪聲的擴階方法和構造成型濾波器來計算有色白噪聲的響應，從而解決一類工程實際振動問題的模擬模擬。
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