radar signal detection 中文意思是什麼

radar signal detection 解釋
雷達信號檢測
  • radar : n 〈美國〉【無線電】 〈radio detecting and ranging 之略〉 雷達，無線電探測器 （＝〈英國〉 radiolo...
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  • detection : n. 1. 探知；發現，發覺；敗露。2. 【化學】檢定，檢查；【電訊】檢波。
  1. To the principle of single - station high - frequency ground wave detection radar, simple pulse wave was chosen, but this wave has many limitations, so continuous signal wave was preferred

    從雷達信號波形選擇來看，對于單站高頻地波超視距雷達體制，最初採用簡單脈沖波形。但這種波形存在著許多缺點，最終採用連續波信號體制。
  2. Wavelet packet transform is used to improve the snr of the incoherent integral radar echo, and bispectrum algorithm is used for signal detection in this united detecting algorithm, based on the modeling for the through - wall radar echo

    在對穿墻雷達回波信號建模的基礎上，用聯合演算法將非相干累積后的回波信號經過小波包變換提高信噪比，再用雙譜演算法進行信號檢測。
  3. A new wavelet - bispectrum united detection algorithm is proposed to face with problems such as the complex structure and low signal to noise ratio of radar echo, when there exist difficulties in detecting impulses in through - wall radar systems

    摘要針對沖擊體制穿墻雷達系統中回波信號結構復雜、信噪比低、信號檢測困難等問題，提出一種小波雙譜聯合檢測新演算法。
  4. When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis

    對壓制式干擾來講，干信比越大，雷達的發現目標的概率就越小，由於分散式干擾的干擾效能在於其合成功率，在分散式干擾單元分佈之後，各個干擾源與被干擾對象之間的距離的不確定性，帶來了干擾信號相位的不確定性，增加了分析干擾效能的復雜度。
  5. Signal preprocessing of non - contact life parameters detection by radar technology

    雷達式非接觸生命參數檢測的信號預處理
  6. Take integrity of object information into condition, a two - dimension signal processing method which can make a measurement of the target ’ s speed as well as the range is brought forward at the basis of waveform parameter design. and simulation in the background of hf multi - object with noise is taken. a comparison of signal properties, processing and antinoise detection performance is taken between mcpc and another two high range resolution radar signals : single carrier pulse coded signal and step frequency pulse coded signal

    考慮到目標信息提取的相對完整性，以高頻雷達為背景，在對多載波相位編碼脈沖串信號參數設計的基礎上，推導了三種多載頻相位編碼脈沖串信號的距離速度二維處理過程並相應的對多目標噪聲環境進行了模擬;將多載波相位編碼信號與另外兩種距離高分辨信號:單載頻相位編碼信號和相位編碼階梯跳頻信號，在信號特性、處理過程和抗噪聲特性方面進行了對比;本文從理論上為多載波相位編碼信號的波形設計和分析、信號的處理打下基礎。
  7. 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。
  8. The ground penetrating radar ( gpr ) is an effective tool to detect buried targets based on the dielectric discontinuity, which possesses a lot of virtue, such as rapid and continuous surveying, simple and convenient operation, high resolution, nondestructive detection etc. this dissertation studied shallow depth signal processing technology of gpr and focused on the clutter reduction and targets imaging

    探地雷達是一種利用地下介質的不連續性來探測地下目標的有效工具，具有探測速度快、探測過程連續、操作方便靈活、解析度高、不損壞被探測目標等特點。本文研究的是淺地層探地雷達的信號處理，主要包括雜波抑制和目標成像。
  9. Radar if signal sampling and engineering implementation of digital coherent detection

    雷達中頻信號采樣及數字相干檢波的工程實現
  10. Presents the development of modern signal processing techniques, a new implementation method which realizes quadrature coherent detection by direct sampling of if signal generated during the implementation of traditional quadrature coherent detection with analog elements in the form of two parallel baseband channels where in phase ( i ) and quadrature ( q ) components of ceived if singnal where, the imperfect matching of the separate channels due to the analog elements results in high phase and amplitude which meets the needs for high performance radar signal processing, the elementary principles and the implementation process for each method and concludes from simulation results to compare their features and application conditions that the new approach can satisfy of the requirements of high performance sp

    針對近年來提出的通過直接中頻采樣來實現正交相干檢波的方法，分析了其基本實現原理，並用統一的觀點解釋了迄今為止國內外基於此提出的各種實現方法；對每一實現方法的基本原理和實現過程都作了分析，並給出了計算機模擬結果；在此基礎上比較了各方法的性能指標及適應條件.理論分析和模擬結果證明，這一方法完全可以滿足高性能信號處理的要求
  11. There are two ways to enhance the radar ' s detection performance : ( 1 ) for certain signal to noise ratio, choose a optimum detection threshold, whose false decisions producing minimum cost under the preset cost rules ; ( 2 ) basically reduce the false decision probability by increasing echo ' s snr

    雷達在噪聲背景中檢測信號是一個概率問題，提高雷達的檢測能力可歸結為如下兩個途徑： （ 1 ）在信噪比一定的情況下，選擇一最佳門限，使其在一定風險準則下錯誤判決產生的「代價」最小。 （ 2 ）提高回波信號的信噪比，從根本上減小錯誤判決的概率。
  12. At last, in the circumstances of a wide - band radar is used for target detection, the length of received signal is much longer than that of the transmitted pulse signal. because the traditional matched filter collects only a small part of the energy of received signal, it is not good for detection. the generalized matched filter is obtained by improving the traditional matched filter and can collect all energy of received signal, which is good for detection

    最後，在寬帶條件下，雷達發射脈沖信號，雷達的目標回波的時間長度要遠遠大於發射信號的時間長度，傳統的匹配濾波只能收集一部分回波信號的能量，這對于檢測電磁散射比較弱的目標是不利的，而廣義匹配濾波對傳統的匹配濾波進行改進，可以將目標回波的全部能量收集起來以提高檢測性能。
  13. According to the seismic convolution model, a kind of matched filters in time - scale domain is designed for echo signal detection of ground penetrating radar ( gpr ) and implemented in this paper, which is applied to detect the location and amplitude of single reflection wavelet in receiving signal through continuous wavelet transform

    摘要根據地震褶積模型，設計並實現了應用於探地雷達回波信號檢測的時間尺度域匹配濾波器，利用小波變換的時間定位性和尺度伸縮性，檢測出雷達接收信號中單個反射子波的位置與強弱信息，利用已知的雷達發射子波模型還原回波信號，達到了濾除噪聲、最佳接收的目的。
  14. So far, there has not been a mature signal detection approach for hrr radar signals yet

    迄今為止，還沒有一種成熟的高距離分辨雷達信號檢測方法。
  15. ( 4 ) after factual characteristics of targets and clutter have been studied, an approach of radar signal detection based on factual has been given and analyzed deeply, the influence caused by different window length, signal to clutter ratio ( scr ) and clutter background has been analyzed, then the monte - carlo simulation method has been used to analyze the detection performances

    （ 4 ）研究了目標和雜波的分形特性，深入研究了基於分形的雷達信號檢測方法，分析了不同滑窗長度、不同信雜比和雜波背景變化情況對回波分形維數的影響，採用蒙特卡羅模擬分析該檢測器的性能。
  16. The use of chaos in signal processing, communication and control has been a very active area of research in recent years. since chaos is a deterministic complex phenomenon, it opens up a new field for signal processing. this dissertation focuses on developing efficient algorithm for signal detection, parameter estimation of radar and also on radar signal generator

    本文研究屬于基於混沌的應用研究，主要從雷達信號檢測、參數估計、波形設計和圖像處理的數字水印四個方面較全面地討論了混沌理論及相關技術在信號處理系統中應用的可能性，探討了相應的信號處理演算法和實現過程。
  17. Based on the analysis of echo signal and ambiguity function of lfmcw radar, this dissertation advances new theories of lfmcw radar signal detection and estimation and eliminates range - velocity coupling using mtd - frequency domain pairing

    在對lfmcw雷達回波信號和lfmcw雷達模糊函數進行分析的基礎上，提出了lfmcw雷達目標檢測與參數估計方法，並利用mtd -頻域配對法消除lfmcw雷達距離-速度耦合。
  18. Recent researches have showed that sea clutter can be modeled as chaotic dynamic. local prediction technique is used for detection and estimation problem in chaotic environment for radar signal processing

    提出了一種基於神經網路的信號檢測方案；信號檢測解決了信號的有無判斷問題，而參數估計則是要解決信號參量的確定問題。
  19. Recently years, the hot research directions of signal processing concentrate on the new theories of lfmcw radar signal detection and estimation, the new methods of eliminating range - velocity coupling, etc. a series of accomplishments have been achieved

    當前， lfmcw雷達信號處理的研究熱點集中在目標檢測與參數估計方法、運動目標距離-速度去耦合方法等方向上，並已取得一系列成果。
  20. It expatiates the implementation circuit of key technology of the clutter storage and binary detection in radar signal processing. the second part discusses implementation of radar data processing in this system. it introduces the c ~ - ~ 3 filter algorithm and software design of the auto - detect - system in details

    第一部分介紹了雷達信號自動檢測錄取和恆虛警處理的有關理論基礎和硬體實現，詳細闡述了雷達視頻處理中的雜波圖存儲、二進制檢測等關鍵技術的工程實現；第二部分介紹雷達數據處理在本系統的實現，詳細地介紹了-演算法原理和整個錄取系統的軟體體系設計，並就雷達錄取程序中有關難題的解決作詳細探討。
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