頻數估計法 的英文怎麼說

中文拼音 [bīnshǔgūjìfǎ]
頻數估計法 英文
frequency estimation method
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 估 : 估構詞成分。
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 估計 : estimate; evaluate; take stock of; size up; calculate; appraise; reckon; estimation; forecast
  1. In this dissertation, the analog - digital channelized receiver is studied. the optimized system, spectrum reconstructing and accuracy signal frequency estimation algorithms are researched

    本文研究了模數混合通道化接收方案，著重研究其優化結構和關鍵技術以及線性調頻信號參數估計演算法。
  2. Chapter 4 designs and determines the parameters of the algorithm adopted in the instrument system. analyzes and compares the different effects to frequency estimation when using digital filters with different group delay ; determines the data length, a parameter of frequency estimation ; introduces the method of available judgment of sensing signal and determines the judgment threshold as well

    第四章設計和確定了儀器系統軟體演算法的部分參數：分析和比較了不同群延遲特性的數字濾波器對頻率估計的影響；確定了影響頻率估計參數?數據長度的取值規律；給出了判斷傳感信號有效性的檢測方法並確定了檢測門限的取值規律。
  3. The estimation of frequency offset is based on pilot symbols and non - pilot symbols. this paper also discusses some parameters in the method and gives the way of compensation. to get the estimation method of doppler spread width, we model the rayleigh channel based on the conclusion of gans ’ spectrum analysis based on clarke model

    其中頻偏估計採用一種基於導頻符號和去極性非導頻符的方法進行估計，並通過試驗環境驗證了此方法，並確定了這個方法中的參數的取值，在此基礎上介紹了本系統中的頻偏補償方法。
  4. As follow : 1. two solutions of estimating the doppler centroid are put forward. we processe the doppler centroid estimation in the frequency domain and time domain. also this chapter discusses principle of the doppler centroid estimation

    本文主要研究了多普勒參數估計及波數域演算法，主要有以下幾個方面: 1 .闡述了多普勒質心估計的兩種方法:頻域估計法和時域估計法。
  5. At the doppler centroid aspect, this paper make use of maximum value method ; energy method and autocorrelation function method to estimate doppler centroid. at the doppler frequency aspect, this paper make use of image offset method ; time - frequency method ; minimum entropy and fractional fourier transformation method to estimate doppler frequency rate

    在多普勒參數估計中，採用了最大值法、能量法和自相關函數法進行多普勒中心頻率估計;採用了圖像偏移法、時頻分析法、最小熵法和分數階傅里葉變換法進行多普勒調頻斜率估計。
  6. The detection and parameter estimation based on high - order statistics are another approach for ds - ss / bpsk signals. in this paper, a sort of detectors based on fourth - order statistics slices are presented to detect the presence of signal and estimate the carrier frequency and symbol period of ds - ss / bpsk signal

    高階統計分析技術是檢測直接序列擴頻信號的另一途徑，本文提出了一類基於和四階統計量切片的ds - ss / bpsk信號的檢測與參數估計方法。
  7. And used this standard ( large than ex + 3 x x ) to estimate the design sub stage maximum tidal levels using the frequency analysis. an improved method to deduce design tidal level process is put forward, using both designs maximum anneal tidal level and design maximum annual tidal range

    探討了不同參數估計方法下如何判別特大值，並用得到的判別標準（大於ex + 3 x ）對修正後的分期最高潮位序列進行頻率分析確定了分期設計最高潮位。提出了以設計年最高潮位和設計年最大潮差共同控制典型潮位過程放大的設計潮位過程推求方法，使設計潮位過程的推求更趨合理。
  8. ( 3 ) the conventional interpolated dft algorithms are analyzed. a new method, which estimates frequency with high precision and fast rate compared with the mentioned methods for the real single tone based on dft, is presented

    （ 3 ）在分析常規的插值演算法基礎上，提出了一種單信號的快速插值頻率估計方法，只需三個fft變換系數的實部構造頻率修正項，計算量低。
  9. In chapter 3, under the wideband radar system, some parameter estimation methods of scattering center are studied in the white noise and clutter background

    第三章以寬帶階梯變頻雷達為研究背景，在白噪聲和雜波條件下，研究了提取目標強散射中心的參數估計方法。
  10. This paper discusses several questions about imaging algorithms of sar. mainly it discusses three imaging algorithms - range - doppler algorithm, wavenumber domain algorithm and chirp scaling algorithm. still it discusses the assistant processing algorithms of imaging algorithms - doppler centroid estimation algorithms and autofocus algorithms

    本文論述了合成孔徑雷達（ sar ）成像演算法方面的一些問題，主要討論了三種成像演算法? ? - range - doppler演算法，波數域演算法及chirpscaling演算法，並討論了成像演算法的輔助處理演算法? ?中心頻率估計演算法及自聚焦演算法。
  11. The paper propose the complex value u - d factorization based least square method to improve the numerical stability and the fault feature are obtained. 7

    為了提高數值計算穩定性，進一步提出了基於復u - d分解的最小二乘參數估計方法，獲得了變頻調速系統的故障特徵。
  12. Based on the results, the structure of the receiver is optimized to obtain better performance of parameter estimation. ( 4 ) the methods of signal spectrum reconstructing are discussed

    在常規線性調頻信號參數估計演算法基礎上，研究了通道化方案的通道參數對參數估計的影響。
  13. For fh signals, we proposed two algorithms too, one is a signal detection algorithm based multiple - hop autocorrelation ( mhac ) of fh signals, and the other is a parameter estimation algorithm based on time - frequency analysis

    對跳頻（ fh ）信號，本文提出了基於多跳自相關的信號檢測方法和基於時頻分析的跳頻參數估計方法。
  14. For the issue of blind parameter estimation of dsss / bpsk signal damaged by strong additive white gaussian noise ( awgn ), this dissertation mainly researches on carrier doubler method ( cdm ), auto - correlation method ( acm ), delay - and - multiply ( dm ) method and fourth - order cumulant 2 - d slice method

    針對受強高斯噪聲污染的dsss / bpsk信號對抗技術中的盲參數估計問題，本文著重研究了平方倍頻法、時域自相關法、延遲相乘法三種常規的單參數估計法以及四階累積量2 - d切片多參數估計法。
  15. The influence of high velocity has been analyzed and then the relative ways of compensation are introduced. from theory the influence of spinning motion which bring to the targets " one - dimension range - profile has been analyzed. the arithmetic of estimation of signal with polynomial phase is introduced and then spin compensation is realized

    本文以寬帶線性調頻體制雷達為研究背景，以高速運動目標、自旋運動目標為研究對象，研究了高速運動對目標成像所造成的影響，提出了相應的補償演算法；理論分析了目標自旋對一維距離像的影響，引入多項式相位信號系數估計的演算法，實現了目標旋轉補償。
  16. 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。
  17. Maximum value method is fast but not accurate, autocorrelation function method is accurate and have a good effect form radar image according to their estimate methods

    在多普勒中心頻率估計中，最大值法簡單，但精度不高，自相關函數法有較高的估計精度。
  18. Based on the analysis of solving ambiguity, the thesis presents several algorithms for estimating doa and an algorithm for estimating frequency by using methods of subspace parameter estimation under sub - nyquist spatio - temporal sampling condition

    論文在分析解模糊思想的基礎上，給出空時欠采樣下運用子空間類參數估計方法估計波達方向的幾種演算法和一種頻率估計演算法，並從性能上進行了比較和分析。
  19. This makes wide - band digital receiver become a certain trend in the detecting and intercepting of radar signals field. in this dissertation, the parameter estimation algorithms for the monopulse signal, the linear frequency modulation signal and the phase coded signal are studied. according to the algorithms, a hardware platform is set up and tested using tms320c6713b mainly

    本文對單脈沖信號、線性調頻信號和相位編碼信號這三種常見的雷達信號的參數估計演算法作了研究和驗證，並根據這些演算法要求，立足於當前數字信號處理晶元（ dsp ）的發展，基於tms320c6713b構建了一個信號參數估計的硬體平臺。
  20. ( 5 ) based on subspace orthogonal algorithm, a method for estimating the parameters of wide - band chirp signal is studied. it is shown that accurate estimation can be obtained for wide - band chirp signal even under low signal - to - noise ratio ( snr )

    （ 6 ）基於dft原理和fft技術，提出了適用於非高斯噪聲環境的線性調頻參數估計的快速離散chirp傅立葉變換（ dcft ）演算法。
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