頻率分辯率 的英文怎麼說
中文拼音 [bīnlǜfēnbànlǜ]
頻率分辯率
英文
frequency resolving power-
High resolution background moving picture
高分辯率背景視頻動態畫面High offering an explanation rate background video picture
高分辯率背景視頻畫面Testing datas are gathered by using data picking box cras. a general dynamic model for analyzing characters of vibration system has also been developed according to the input and output applied on the testing system. identifications for structure modal parameters and frequency - spectrum characters have been carried out by calling the interface software developed unpon matlab software in both the time field and the frequency field. the structure modal parameters and frequency - spectrum characters have been accurately calculated
利用cras數據採集箱的數據採集功能對系統的信號進行數據採集,通過介面軟體調用matlab軟體平臺,分別針對時間域和頻率域兩種研究方向,解決振動系統模態參數的辯識問題和結構的頻譜特性分析問題,得到系統的相干函數等頻譜特性,獲得模態參數,如模態頻率、阻尼等的精確解。After the compensation based on the rule of the minimum entropy, the resolution of the cross - range image is lower as the large size and non - uniform rotation, which cause the image to be not right at all sometimes. in order to eliminate effect of the non - stationary rotation, the first order approximation and relax algorithm are adopted to search the initial frequency, amplitude, frequency modulation rate and obtain the dynamic image of the target at any time
分析了低分辯雷達的成像演算法,建立在最小熵補償基礎上的演算法得到的橫向像的解析度仍然比較低,尤其對大的目標和機動目標,為此我們採取了一階近似的relax演算法搜索目標的初始頻率、幅度、解調率從而獲得目標的動態一維像,模擬數據和試驗結果證明該方法是有效的。分享友人