鑒相鑒頻器 的英文怎麼說
中文拼音 [jiànxiāngjiànbīnqì]
鑒相鑒頻器
英文
phase detection discriminator- 鑒 : Ⅰ名詞1 (鏡子 古代用銅製成) ancient bronze mirror2 (可以作為警戒或引為教訓的事) warning; objec...
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 頻 : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
- 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
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Capacity analysis of rc bridge phase discriminator
橋式相位鑒頻器的性能分析Phase detection discriminator
鑒相鑒頻器The pll consists of a crystal oscillator, a ring voltage - control - oscillator, a frequency divider, a phase / frequency detector, a charge pump and a loop filter
設計的電路包括20mhz晶體振蕩器,鑒頻鑒相器,壓控振蕩器,固定分頻器,電荷泵和低通濾波器。The designs of the pfd, digital filter ocxo and fractional - n counter in the frequency synthesizer unit are discussed, based on the pll theory. in order to improve the precision of pll, some design methods of pfd are given, and its feasibility is validated by the fpga hardware implement
2 .在鎖相理論指導下,第三章討論了頻率合成器設計中的鑒頻鑒相器、數字濾波器、恆溫壓控振蕩器和分頻電路設計。為了進一步提高頻率合成的精度,文中給出了提高鑒頻鑒相器性能的一些設計思想,結合fpga的硬體設計驗證了其可行性。Eddy - current sensor conversion circuit consist amplification circuit, band - pass filter circuit, demodulation circuit, differentiation phase and data sampling circuit. these circuits are used to convert the test signal of eddy - current sensor to discrete signal tend to process. the microprocessor system that formed of dsp chip is used to data fitting of test system, data displaying and data communicating with personal computer, etc. the interference questions of hardware design and the measure of eliminating interference signal in the subject are introduced in the last of this chapter
硬體電路的設計主要分三大部分來實現:激勵源電路部分,由分頻電路和頻率合成電路組成,產生頻率穩定的激勵信號以確保檢測任務的正常進行;傳感器變換電路部分,由放大電路、濾波電路、檢波電路、鑒相電路和數據採集電路組成,主要將電渦流傳感器檢測線圈檢測到的信號變換成只含有被測信息的離散信號,易於后續電路處理;由dsp晶元構成的微處理系統,主要完成檢測系統的數據擬合、顯示及與主機通信等功能。For digital audio encoding and decoding modules, delta - sigma modulation is introduced and audio data, preambles with accessorial data are multiplexed according to the digital audio interface standard ; for carrier wave, pll frequency synthesizer is used ; for frequency modulation, voltage control oscillator is taken ; for demodulation, pll frequency discrimination is adopted
調制方式,並按照數字音頻介面標準對音頻數據、同步字和附加信息進行通道復用;對于載波信號,採取鎖相環頻率合成技術手段;對于頻率調制,採用壓控振蕩器;對于解調電路,採取鎖相環鑒頻電路。A device that converts a property of an input signal, such as frequency or phase, into an amplitude variation, depending on how the signal differs from a standard or reference signal
鑒別器,鑒頻器一種將輸入信號的某一特徵,如頻率或相位轉變為幅度變化裝置,其變化大小因信號與標準或參考信號的不同程度而異Research on chaotic phenomena of phase - locked frequency detector with triangular phase - detector
三角形鑒相特性鎖相鑒頻器中混沌現象的研究In this paper, a ku band frequency source based on sampling phase lock loop technique is introduced. the vco of the loop is designed using dielectric resonator. the theory and design method is discussed and emphasized on
本文介紹了一個應用取樣鑒相和鎖相原理製作的微波ku波段頻率源(頻率合成器) ,其中的壓控振蕩器部分是用介質諧振器( dr )設計的。Finally introduced the method that use adf4113 and provied the real test result of this multi - frequency, low phase noise pll frequency synthesizer with 30mhz working band and 1mhz frequency step. in addition, some method that solved the problem often occurred was introduced
最後給出了由ad公司的電流泵數字鑒頻鑒相器adf4113和無源環路濾波器構成的頻率合成器的控制方法和實驗測試結果,實現了工作帶寬30mhz ,頻率步進1mhz的多點頻、低相噪頻率合成器。Research on the design of programmability frequency multiplier and phase detector on isp devices
器件的可編程倍頻鑒相邏輯電路的設計The main task including : when the raster ruler and axis - angle coder move forward or backward, they will bring pulse signals which are length signals and angle signals. these signals will be sent to signal processing circuits to be pretreated. then the signals will be sent to direction differentiation circuits to differentiate the directions
主要完成以下任務:把光柵尺和軸角編碼器前進或後退產生的長度信號和角度信號,送信號處理電路進行處理,再送鑒相倍頻電路進行鑒相處理,送單片機計數,由另一片單片機把計數的結果數據經過串列通訊電路送至pc主機去進行處理。We provide rf assemble as well, including power splitters, amplifiers, phase detectors, attenuators, synthesizers, multiplexer and radar receiver subassemblies for rf application
射頻組件包括功分器,放大器,鑒相器,衰減器,頻綜,倍頻組件,雷達接收組件等。In this method, the phase difference between two compared signals that have same nominal frequency can be converted into voltage signal by phase detector. the voltage signal varies linearly with the phase difference and can be displayed or recorded by some instruments
此方法是將兩個被比對的標稱值相同的標準頻率信號之間的相位關系,通過線性鑒相器轉換成與它成線性關系的電壓信號,並通過相應的設備進行顯示紀錄。The basic operation principle of phase - locked frequency synthesizer and the type of circuits are expatiated systematicly in this paper. the principle of operation on sampling phase detector and some characteristics including the linear tracking and phase noise in phase loop circuits are analyzed deeply. the research is emphased on the theory and design method of circuits in the sampling phase - locked frequency synthesizer. then, the expansion capturing circuit is analyzed and designed for better performance of capturing loop circuits. at last, the loop filter is also analyzed and contrived taking account of effection of additional phase shift by the sampling - holder. the general research on the theory and technology of sampling phase lock in the paper will make a basement for the development of new product
本文系統的闡述了鎖相頻率合成器的基本工作原理及電路類型;較深入地分析了取樣鑒相工作原理及電路、鎖相環路的線性跟蹤特性和相位噪聲特性;重點對取樣鎖相頻率合成器電路理論和設計方法進行了研究;為了改善環路的捕獲性能,對擴捕電路進行了分析和設計,並用wewb32軟體對電路進行了模擬;考慮到取樣保持器的附加相移影響,對環路濾波器進行了分析和設計。In this paper, a pll frequency synthesizer working in l band is researched. at fist, we review the basic of phase lock loop and it ' s constituent part. after that the basic conception and design method of pll frequency synthesizer was introduced, especially introduced the charge pump pll frequency synthesizer in detail
本文是採用鎖相原理設計的l波段頻率合成器,首先對鎖相環路的工作原理和基本組成部分進行了簡單的介紹,然後介紹了鎖相頻率合成器的原理和設計方法,主要介紹了目前小型頻率合成器產品中使用最廣泛的由電荷泵數字鑒頻鑒相器和無源環路濾波器構成的頻率合成器。By using msp430 micro controller unit and cpld technology, this method realized twofold frequency phase ranging : the rough measurement of the distance is realized by countering high frequency pulses which are filled in discriminating phase pulses ; the accurate discriminating phase pulses are converted by using the method of time to voltage conversion, and then the adc device samples the converted voltage, so the accurate measurement of the distance is obtained by processing the adc samples through micro controller unit
該方法通過msp430單片機和先進的cpld技術實現雙頻測相:粗測通過採用對鑒相脈沖填充高頻脈沖的辦法來實現;精測則利用時間-電壓轉換法對鑒相脈沖進行轉換,然後由模數轉換器adc對轉換電壓進行采樣,通過單片機對adc的輸出值進行計算處理獲得精測值。Then according to the emphasis of the design, went deeply into the theory of pll frequency synthesizers widely used, described pll ’ s working principle, structure and several types in detail, and made research and analysis of pll frequency synthesizers ’ phase noise, including the effect of the active loop filter on the phase noise, and give some methods to make improvement as well, such as changing loop filter form, reducing divide number, and increase phase detector frequency, etc. then paper introduced the principle character and phase noise analysis of direct digital frequency synthesizer ( dds ) and injection phase lock circuit, which are also important circuits in the design
論文首先對幾十年頻率合成器的發展進行概述,而後針對本次設計的重點,對應用較為廣泛的鎖相頻率合成理論進行了深入的探討,詳細介紹了鎖相環的工作原理、組成結構和鎖相類型,並對鎖相頻率合成器的相噪特性進行了研究分析,包括有源環路濾波器對于相噪的影響,提出了改善相位噪聲的幾點措施:改善環路形式、降低分頻數、增大鑒相頻率等。接著介紹了直接數字頻率合成器( dds )和注入鎖相電路的原理特點以及相噪分析,它們也是本次設計的重要電路。First, an analysis for the design of the impulse phase lock oscillate, which includes impulse phase detector the dielectric resonant oscillate etc. secondly, presents an analysis for the design of wide band balanced low noise amplifier. the last two part simplify the theory and the electrical characteristics of the sub harmonic mixer, and the mmvco
第一部分著重介紹了脈沖鎖相源的工作原理(主要包括取樣鑒相器和介質穩頻的壓控振蕩器) ,並介紹了研製結果的性能指標;第二部分介紹了平衡式寬帶低噪聲放大器的基本理論The thesis describes a prototype fractional frequency synthesizer which is supported by a project granted by the ministry of science and technology of pr china. firstly, based on the principle of pll, this paper briefly describes three basic pll components : phase detector ( pd ), low pass filter ( lpf ), voltage controlled oscillators ( vco ), analyzes the linearized pll and summaries the transfer functions of third - order pll with ideal intergrator filter respectively. based on a microwave vco, the single point frequency pll frequency ranging from 2. 2 to 2. 5ghz is developed
首先,從鎖相環的基本理論、原理出發,分析了鎖相環中的三個基本部件:鑒相器、環路濾波器和壓控振蕩器,此後,針對線性化鎖相環進行了分析,研究了在使用比例積分濾波器時,三階鎖相環的環路參數計算;在電路實現時選用了lmx2353 ,在此基礎上,完成了2 . 2 ~ 2 . 5ghz范圍內的小數頻率合成器設計。分享友人