sea spectrum 中文意思是什麼
sea spectrum
解釋
海洋分析-
One of these problems is the broadening of the first order sea echo doppler spectrum, which most likely swamps the targets spectrum
本文針對這樣一個關鍵性問題?展寬海浪譜中信號檢測問題展開研究，即如何應用超分辨譜估計技術來實現目標的檢測與分辨。 -
Super - resolution spatial spectrum estimation is applied in this dissertation to realize bearing resolution by utilizing the different bearings between targets and first - order sea echoes. the simulation of radar echoes in one resolution cell is presented based on the theoretically analyzing hf sea clutter sea clutter reflection characteristic and sea echo spectrum stretching mechanics
本文從分析高頻海雜波反射特性以及平臺運動引起海浪展寬機理入手，建立便於理論研究的一階展寬的海雜波和二階海雜波模型;在分辨單元上對雷達回波信號進行了模擬。 -
Recent talks have included managing the radio spectrum in telecommunications, the use of analytical science in consumer protection, methods for predicting ultraviolet index, and conservation of sea turtles in hong kong
有關部門最近舉辦了多個講座，主題分別為無線電頻譜及它的管理分析科學如何保障消費者紫外線指數預報香港的海保育工作。 -
Finally, the paper introduces the test of wave simulation by wave - making system that has improved. the test data indicate that it is able to competent at wave simulation of sea wave spectrum for shipmodel test, we have changed the situation that the wave - making system ca n ' t simulated sea waves. and have established the foundation for the quality of improving the scientific research of our school and experiment teaching further
最後，本文介紹了對改造后的造波系統進行波浪模擬測試情況，試驗數據表明，該造波機經過升級改造，完全可以勝任對船模耐波性試驗所要求的海浪譜的模擬，並且還可以根據需要模擬任意的海浪譜，模擬精度達到試驗要求。 -
Based on the spectrum of mean sea level ( msl ) and the relation model between two tidal stations, the mathematical model for hydrographic datum transfer are studied
基於平均海面的頻譜結構和兩驗潮站潮位之間的關系模型，對基準面傳遞的方法原理進行了理論研究。 -
Through the i 、 q component of ipix radar sea clutter data " s histogram analyses and by skewness and kurtosis computed, it is been shown that sea clutter amplitude is not rayleigh distribution ; through the comparison of amplitude histogram and distributed models with the same parameters, it is been shown that hh polarization clutter is lognormal distribution, whereas vv polarization is k - distribution ; at the same time the correlation function and power spectrum density are been analyzed, at last the correlation compound k - distribution stochastic sequences whose covariance matrix is been given are been generated through sirp algorithm
文中先介紹了海雜波幅度的有關模型，通過對ipix雷達海雜波數據的i 、 q分量的直方圖以及傾斜度和峰度進行了分析和計算，證明了海雜波幅度不服從瑞利分佈;使用幅度直方圖和相同參數下的各種分佈模型進行比較，得出hh極化符合對數正態分佈，而vv極化服從k -分佈的結論;同時對海雜波的相關函數和功率譜進行了分析，最後使用sirp演算法產生了給定協方差矩陣的相關復合k -分佈隨機序列。 -
This paper is mainly about land clutter and sea clutter. it meanly introduced scatter character, radar echo signal range, and power spectrum model. in the end, a hardware realization of producing a specified power spectrum is given
本文主要研究了地、海雜波的散射特性、回波幅度特性和頻譜分佈模型，並且給出了一種硬體實現產生具有一定頻譜特性的雜波的方案。 -
The family of straphylococcal enterotoxins ( ses ), including sea - e, seg, seh and sei, has been known to contribute to a broad spectrum of diseases ranging from tissue infections to life - threating speticemia and toxic shock syndromes, and from kawasaki ' s syndrome to atopic dermatitis, even multisystem vasculitis
對超抗原免疫識別機制的深入研究，可望進一步為相關疾病的防治提供新的方法。金黃色葡萄球菌（金葡菌）超抗原家族由於涉及的疾病譜非常廣泛，一直是比較活躍的研究領域。 -
Combine with the project " hf ground wave radar supervise sea status " of state 863 project, retrieving wind direction from hf radar doppler spectrum and the showing of wind field, current field, wave field are researched in this paper. the problem of how to represent the sea surface parameters by computer is concerned, too
本文結合863 - 818 - 01 - 02課題「高頻地波雷達海洋環境監測技術」 ，研究了由高頻雷達海面回波提取風向信息和海面風場、浪場、流場信息的計算機表徵方法及其數據傳輸反演和表徵的若干問題。
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