range of a signal 中文意思是什麼

range of a signal 解釋
顯示距離
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  • of : OF ＝Old French 古法語。
  • a : an 用在以母音音素開始的詞前〉 indefinite art 1 〈普通可數名詞第一次提到時，冠以不定冠詞主要表示類...
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  1. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  2. The concept of irradiance signal - to - noise ratio ( snr ) on the target plane and the minimum of the irradiance that can be detected by the detector was taken as the beginning, combined with a thorough analysis of the spectrum radiating feature of the target and the sky background, the atmosphere conditions, spectral filtering and the influence that the various components in the system have on the target irradiance on the detector ' s target plane and the background irradiance snr, the equation of the flying bomb ' s effect range affected by the point of burst measuring system is made, and all related factors that have an impact on the effect range are analyzed as well

    從探測器靶面上輻照度信噪比的概念、探測器的可探測輻照度最小值出發，在詳細分析目標、天空背景的光譜輻射特性、大氣條件、光譜濾波技術以及系統各環節對探測器靶面上目標與背景輻照度信噪比的影響的基礎上，推導了炸點測量系統對爆炸的飛行彈體的作用距離方程，分析了影響作用距離的諸因素。
  3. The paper introduced a phase range system based on fpga embedded technology. three functional module in the range system : modulability signal generation source, information control unit and information management unit, can be designed in one pld chip, so a majority of shortcomings of traditional phase laser range were conquered by this excellent innovation in circuits

    本文介紹了一種基於fpga嵌入式技術的相位激光測距系統，該系統採用先進的fpga技術，實現了調制信號產生、信息控制與處理各模塊的整合，解決了傳統相位激光測距所難以克服的弱點。
  4. For phonetic signal modulation, if the pass band range of the band pass filter ( bpf ) is 300hz - 3400hz, the anti - noise properties of laser are approximately independent of bias current and parameters of the cavity ; when the pass band range of bpf increases to a certain degree, modulating bias current and parameters of the cavity can improve the anti - noise properties of laser

    對語音調制情況，如帶通濾波器的通帶范圍取為300hz - 3400hz ，則激光器的抗噪聲性能基本不依賴于偏置電流和腔內參數；當帶通濾波器的通帶范圍增大到一定程度，調整偏置電流和腔內參數可以實現半導體激光器的高抗噪聲性能。
  5. The influence on the magnetism and the electron spin resonance ( esr ) over a wide range of composition and temperature have been studied systematically. an obvious symmetric esr signal with a lorentzian lineshape in the paramagnetic regime is observed

    本論文邊過選擇磁性離子替代，著眼點在於討論衫雜離子的磁性效應，實驗發現摻雜使樣品的磁結構發生變化，且在低溫時出現磁化強度峰，用摻雜離子自旋旋轉對此進行了解釋。
  6. This is calculated by dividing the number of inhabitants within range of a mobile cellular signal by the total population

    用處于移動蜂窩電話信號覆蓋范圍內的居民數除以總人口就可算出。
  7. The mobile population coverage measures the percentage of inhabitants that are within range of a mobile cellular signal whether or not they are subscribers

    移動蜂窩電話人口覆蓋率度量的是處于移動蜂窩電話信號覆蓋范圍內的居民百分比，而無論其是否是用戶。
  8. Pulse internal phase coding and pulse external quasi random frequency agile signal is a kind of complex signal which can avoid interference frequency band, increase system bandwidth, consequently increase the range resolution

    本文所研究的脈內二相編碼脈間準隨機跳頻信號是復合信號的一種，可以避開干擾頻段，提高系統帶寬，從而提高了距離分辨力。
  9. This dissertation put forward a method of eliminating noise and reconstituting broken wires signal and inquired the space - frequency range of the signal ripple resulted from tensile stress on the mfl signal curve

    提出了去除干擾重組斷絲信號的方法，分析了漏磁曲線上應力波紋的空間頻率分量。
  10. In this paper, a high integrated and intelligent digital dsp - spm system is developed based on the nspm6800 spm manufactured by the beijing zhongke mechanical & electrical equipment co. at present, the pc of spm system is burdened with not only sending and receiving data, but also disposing of image, which hinders the enhancement of speed of the system. in addition, as the function of spm is expanding, including tappingmode afm, efm, mfm, scm, etc, one hand, it amplifies the range of the application of spm, on the other hand it also means that the task of autocontrol and data transfer heavier. the advantages offered by the dsp compared to analog systems include considerable flexibility in the choice of the signal processing algorithm and greater ease in managing control parameters by the host computer, which are very important for the improvement of spm

    本課題以北京市中科機電設備公司的nspm - 6800型掃描探針顯微鏡為基礎，重新設計了以dsp為控制核心的控制系統，主要解決原系統存在的以下問題： （ 1 ） pc機既要實時控制數據的採集與發送，又要進行圖像的后處理，整個系統的實時性難以達到要求； （ 2 ）隨著spm功能的擴展，一方面包括輕敲式原子力顯微鏡、電場力、磁場力、掃描容場顯微鏡等技術在內的spm技術擴展了儀器的測試范圍和功能，另一方面也意味著自動控制量的增加和數據處理量的增加； （ 3 ） 16位a d 、 d a都採用的是購買的板卡，也通過isa槽插在pc機內，成本高，不利於擴展； （ 4 ）另外，數字板通過isa槽插在pc機內，易受于擾，而且給安裝帶來不便。
  11. The driver has the quiescent current under 1 a and also has soft - start circuitry to limit inrush current flow at power up. the chip can be operated normally in the temperature range of - 40 to 85 according to the simulation results. the brightness of the white leds can be controlled by using a dc voltage or a pwm signal applied to the pin with a few external components added

    系統採用0 . 5 mcmos工藝;輸入電壓范圍為2 . 7v到5 . 5v ;在關閉狀態下消耗電流小於1 a ;具有軟啟動功能，可減小啟動過程中的浪涌電流;具有短路及過熱保護功能，工作溫度范圍為- 40至85 ; led亮度控制可以通過外加dc或pwm電壓信號和很少的外部元件實現。
  12. Blind signal processing is a new orientation in the field of signal processing, it also has broad range of application in daily life

    盲信號處理技術是最近一段時間興起的一個新的研究領域，它在實際中有著非常廣泛的應用，盲信號源分離是盲信號處理技術的一個研究方向。
  13. All the products are applicable in a wide range of fields, such as electronic appliance, metal processing, automobile manufacturing, fashion, textile material compounding, shoes manufacturing, packing, reflective signal, communications, structure, decoration, waterproof etc, wildly used in adhesion, compound, corrosion resistance, antiseptic insulation for special materials. the series products of pu sieve - plates were manufactured by xinfapu company have got the certificates of iso9000 - 2000, gold prize of china trade fair, and national patent

    鑫發聚氨酯篩板充分地利用了聚氨酯彈性體卓越的耐磨性能，寬廣硬度范圍內的高強度，高伸長和高彈性，良好的減震性能以及耐油，耐低溫，耐熱老化，抗輻射，電絕緣等性能，加上其合理篩孔結構和安裝結構設計，被廣泛的運用於各種大型工程的砂石系統，冶金礦山的選礦篩分系統，及其他使用篩分機械振動篩選的企業。
  14. According to the features of the signal of cmf, i. e. the signal frequency varies in a small range and the signal is subjected to the harmonics, a digital method based on a digital phase locked loop is used to process the signals of cmf, tracks the change of the signal frequency and calculates the phase difference. the technique proposed by the u. s. patent has been improved and made the simulation

    針對科里奧利質量流量計信號的特點，即信號頻率在小范圍內變化和信號易受諧波干擾的特點，採用基於數字鎖相環的方法處理科氏質量流量計的信號，跟蹤信號頻率的變化，計算相位差，對美國專利提出的方法進行了改進，並作了模擬。
  15. It has a wide range of application in digital communication system, radar and electronic warfare system, mechanical electronic system, etc. the object of this paper is to design the structure of mda - 2 ' s system software and design the ieee - 488 interface circuit. the paper discuss the system software structure at first, i solve some problem in this part, such as crude adjust and fine adjust, the printing of wave and data etc, the main innovation of my design is design a soft control panel and solve the system panel, i still analyse the method of digital signal processing in software, mainly discuss the median filter ' s performance

    在軟體部分本人解決了第一代調制域分析儀系統軟體中所存在的游標粗調和細調以及波形數據列印等問題，其中最為重要的是採用軟控制面板的軟體設計思想解決了系統上急於解決的控制面板問題，這是本人在課題設計上的一個創新之處；在軟體設計部分本人還對所採用的濾波演算法進行了性能分析，其中重點論述了軟體中所採用的中值濾波器的性能，並從中得出了一些重要的、有價值的結論。
  16. Change in force transducer s zero signal referred to the characteristic value, as a result of a change in ambient temperature by 10 k within a defined temperature range after adjustment of stationary states

    每10k零點信號的溫度影響穩態調節以後，規定溫度范圍內周圍溫度變化10k時力傳感器根據特徵值的零點信號產生的變化。
  17. A unique type of floating controller ; the output may change at two or more rates, each corresponding to a definite range of values of the actuating error signal

    一種獨特類型的浮點控制器，其輸出可以按兩個或多個速率改變，每一速率對應於一個確定的激發誤差信號的值域。
  18. In hardware design, an integrated multi - center a / d chip is for input signal conversion, cpld and arm empu are the core of fault diagnosis system and information processing. host computer is connected with the system through network technology - which owns certain advantages such as wide range of input signal, powerful processing ability and low power consumption ; also it can be extended as a remote portable terminal

    在硬體設計上，採用集成多通道a / d轉換晶元完成輸入信號的轉換，使用大規模可編程邏輯器件和高性能嵌入式處理器作為故障診斷系統控制和信息處理的核心，採用網路技術實現診斷系統與主機的連接，系統具有前端輸入信號范圍寬，處理能力強，功耗低，可擴展為遠程診斷系統便攜式終端等優點。
  19. The purpose is to compress the dynamic range of input signal from 40db to 5db. microwave limiting amplifier is widely used in electronic detecting and interfering radar system. so design a high performance limiting amplifier is a very important research direction

    限幅放大器把很寬動態范圍內的微波輸入信號放大並壓縮為很小動態范圍的微波輸出信號，減小輸入信號大動態范圍內的波動對輸出信號處理的影響。
  20. Active underwater acoustic positioning / tracking systems locate target by measuring the range from object to receiving sensors. usually the target - receiver range can be got by the propagating time of a signal pulse. if this propagating time is larger than the pulse repetition period, it will mean that more than one signal pulse are on propagation

    主動水聲跟蹤定位系統通過測量脈沖信號的傳播時延可以測得目標相對接收機的距離，當此傳播時延大於系統同步周期時，時延測量就會呈現不確定性，可能相差若干個重復周期，導致定位解多值，稱之距離模糊現象。
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