chirp radar 中文意思是什麼
chirp radar
解釋
線性調步雷達-
Through the detailed analysis of the aaf, the defection of using chirp - fourier transform in guidance radar signal processing is pointed out
通過對加速度模糊函數的形態分析也指明了針對線性調頻信號的二次相位匹配處理（ chirp - fourier變換）在應用到制導雷達信號處理中所存在的缺陷。 -
In order to obtain high range resolution, the chirp signal is used as subpulse to form stepped frequency modulated radar signal
摘要為了獲得高距離解析度，將線性調頻信號作為子脈沖構成調頻步進雷達信號。 -
Aiming at the restrictions of fft methods, this paper put forward a transform naming changing scale discrete chirp - fourier transform and applied it to detecting accelaration target using missle - borne high - prf pulsed doppler radar, at last this paper put forward a new sequential detection method. in the third part of this paper, aiming at the different characteristic of the extended target spectrum, this paper discussed the detecting and precised measuring the extended spectrum of the target
針對傳統fft對加速目標進行積累檢測時的局限性，提出了一種變尺度離散chirp ? fourier變換並將其應用於彈載高重頻脈沖多普勒體制雷達對加速運動目標的檢測背景中，提出了一種對加速運動目標的序貫檢測演算法。 -
1 in the research of design of radar waveform, one kind of hybrid radar waveform obtained by combining the chirp waveform with the non - periodic pseudorandom sequences is discussed. through the theoretical analysis and computer simulation, several main characteristics of this kinds of hybrid waveforms are discussed, such as the ambiguity function, ambiguity graph, the spectrum, the weighting methods, the response of the processing filter and the low probability of interception. those are showing the effectiveness of the new hybrid waveforms on the performance of high resolution and low probability of interception
作者在以下幾個方面的研究工作中取得了進展及創新： 1 、在雷達波形設計中，介紹了一類新的線性調頻信號與非周期隨機編碼信號相結合的組合波形的組合形式，通過理論分析和大量的計算機模擬研究了這類組合波形的模糊函數（圖） 、頻譜特性、多普勒頻移特性、加權輸出特性、低截獲等方面的特點，證明了新型的組合波形在高分辨、低截獲等方面的有效性。 -
Two common - used synthetic aperture radar imaging algorithms, range - doppler algorithm and chirp - scaling algorithm, have been analyzed and tested using compute simulation and real synthetic aperture radar data. one key issue of the synthetic aperture radar high resolution imaging is how to obtain sar image of high geometrical resolution
在此基礎上，討論了合成孔徑雷達距離多普勒成像演算法以及chirp - scaling成像演算法，分析了各自的特點，對兩種成像演算法進行了計算機模擬實驗以及實際數據實驗驗證。 -
The reseach work focused on the time delay estimation of the common practical radar singnals, including harmonics signal, chirp signal, polynomial phase signal, and phase - shift keying signal. the new algorithm for different radar signals are deduced in detail respectively, and simulation results are presented. the results proved that the new method is efficient for time delay and some other parameters estimation
正弦信號、線性調頻信號、多項式相位信號、相位編碼信號是雷達信號中常用的幾種信號，對這幾種信號的研究是雷達信號處理中非常重要的內容，也是實際工程的需要。因此，本文選擇上述幾種信號作為研究對象，對這幾種信號的時延估計演算法進行了建模和理論推導，給出了時延估計演算法的具體表達式，並進行了計算機模擬。 -
( 1 ). here we build the system space geometry model : the transmitter and receiver fly on different platforms and at different height, two flight paths are unparallel. based on the chirp signal and the taylor series, we analyze the range history and synthetic aperture time, then demonstrate the equation of the azimuth resolution about air - born bistatic spotlight synthetic aperture radar, meanwhile we obtain the equations of doppler bandwidth and doppler frequency modulate rate
本文以機載聚束式合成孔徑雷達成像作為研究背景，主要完成了以下幾方面的工作: （ 1 ）建立了一種機載雙站聚束式sar空間幾何數學模型，對方位分辨力進行了理論分析，進行了數值分析與模擬，討論了不同條件對雙站聚束模式sar系統分辨力的影響。 -
Linear frequency - modulated ( lfm, chirp ) signal that is often applied in radar, sonar and communications system is nonstationary signal, in which the frequency varies with time
應用於雷達、聲納和通信等信息系統中的線性調頻（ lfm ， chirp ）信號是非平穩信號，即頻率成分是隨時間變化的。
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