比值檢波器 的英文怎麼說
中文拼音 [bǐzhíjiǎnbōqì]
比值檢波器
英文
ratio detector- 比 : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
- 檢 : Ⅰ動詞1 (查) check up; inspect; examine 2 (約束; 檢點) restrain oneself; be careful in one s c...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 比值 : specific value; ratio比值法 ratio method; 比值計 ratio meter; 比值檢波器 ratio detector; 比值控制...
-
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。Based on the six - port relative power theory that for a given load the relative power ratios of different ports are left unchanged with the input power to the six - port varied, characteristic parameters of detectors can be obtained through the least - square method
根據六埠相對功率理論即對某一負載各埠相對功率比值不隨輸入功率變化,由最小二乘法得到檢波器的特徵參數,結合四標準法,確定六埠網路的系統常數。The hardware is composed of the selection of sensor, magnifying circuit, filter circuit of multi - plot tracing, shaping circuit, demodulation circuit, peak value holding circuit, and voltage comparing circuit
硬體部分包括傳感器的選擇、放大電路、多點跟蹤濾波電路、整形電路、檢波電路、峰值保持電路、電壓比較電路。This paper simulates the effect of voltage fluctuation inspection through the tool of matlab. and proves the filters ' s stability. in the part of self - checkout, pi ( proportional integral ) control arithmetic is put forward to check the gain k and the calculated results show the method ' s effectiveness. then many comparements toward pst are done in different realization methods such as different interpolation points classification number and sample frequency. though simulation and calculation we can see the designed flicermeter can meet our country ' s standands
文中利用matlab對電壓波動的檢測效果進行了模擬;並對涉及到的濾波器的穩定性做了證明;在自校驗部分提出了將pi (比例、積分)演算法用於數字濾波器增益k值的確定,取得了不錯的效果;然後分別從取不同插值點、不同分級數和不同采樣頻率這幾個方面出發,對計算出的p _ ( st )值進行了比較。It gives assistance to improve efficiency of the multiple frames accumulation. by analyzing the merits and demerits of several kinds of preprocessing, such as highpass filtering, median filtering, tophat transformation in mathematical morphology and wiener filtering, the local singularity filtering based on improved susan principle has been given, and it has a high power to raise the probability of target detection in single frame
良好的預處理將提高后續的多幀積累的效率,對比常用的幾種預處理演算法,如高通濾波、中值濾波、數學形態學的tophat濾波、維納濾波等方法的優點和不足,提出了一種改進的susan濾波器? ?區域奇異性濾波,該濾波方法對于提高單幀檢測概率有很好的功效。Abstract : the threshold algorithm of the target detection is often used to detect target echo signals. its performance is based on signals - noise ratio. when signals - noise ratio is great than 6. 7, the target can be detected. in order to increase the signals - noise ratio, matching filter is often used. if the system is narrow band system, the noise is color noise and matching filter cannot be used. therefore, the signals - noise ratio cannot be increased. however, the geometrical characteristic of the laser echo signal is different with the noise. this paper advises the algorithm that detects the target by the geometrical characteristic. when signals - noise ratio is great than 2, this algorithm can detect target. this algorithm has been used in practice
文摘:目標檢測的閾值法經常用於檢測目標的回波信號.它的性能取決于信噪比,當信噪比大於6 . 7時,能夠檢測出目標.為了提高信噪比,經常採用匹配濾波器.如果系統是窄帶系統,噪聲為色噪聲,無法使用匹配濾波器,不能提高信噪比.激光回波信號的幾何特徵不同於噪聲.提出了一種利用這種幾何特徵檢測目標的演算法.當信噪比大於2時,該演算法能夠檢測出目標.該演算法已經實際應用The dissertation studied a weak moving target detection algorithm based on tingling of the detector, the detection algorithms based on projection and the hough transformation based on the maximum summation filter are presented, the software simulation and hardware design of the hough transformation based on the maximum summation filter are given
本文對探測器抖動情況下低信噪比可見光運動目標的檢測技術進行了研究,提出了一種基於和最大值濾波的改進型hough變換檢測演算法,並對演算法進行了計算機模擬和硬體電路設計。With the advantages such as simple structure, small volume, ease to make, high cost - performance and remote analysis, optical fiber biosensors have been widely applied in clinical diagnostic, environmental protection and food service industry
光纖倏逝波生物傳感器具有結構簡單、體積小、製作方便、性價比高和可遠距離分析等優點,在臨床醫學、環境監測以及食品工業得到了廣泛應用,在軍事醫學、生物戰劑檢測等軍事領域也表現出了極高的應用價值,受到了高度重視。分享友人