正弦波信號 的英文怎麼說
中文拼音 [zhēngxiánbōxìnháo]
正弦波信號
英文
sine wave signal-
The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory
本文通過分析認為,當信號集中的任一信號可表示為一系列已知信號的線性代數和時,信號集便構成可分解信號集,已知信號稱為基波信號;對可分解信號而言,基波系數構成一序列,當對指定的基波信號集分解唯一確定時,系數序列本身便是信號的一個表示;可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時,則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應,從而由該樣值序列構成的采樣必為完全采樣;可分解信號采樣定理中的推論指出,對信號集進行采樣,采樣頻率必須大於其信號分解的基波數與其對應時長之比;對有限帶寬信號,若基波信號為正弦信號時,由可分解信號采樣定理推論給出的結論與經典采樣定理一致。In the circuit, using the way of step - by - step magnify, a normal sine wave signal through former circuit export for the next circuit, and this signal that have been magnified push the next step. the main magnify circuit use the method of high power dynatron that is parallel connection
在迴路中採用逐級放大的方法,將一個標準的正弦波信號通過前級放大,輸出給后級,推動后級放大迴路,主要的功率放大迴路中採用大功率三極體並聯實現功率放大輸出。The experiment apparatus has been developed, which is based on software ( labview ) and hardware ( pci board ni 6024e ). the displacements and generative force at the tip of the ipmc actuators were measured with respect to the different voltages, frequents and various waveforms which include square, sinusoidal, and triangular wave
實驗選取了不同電壓幅值,不同頻率的方波、三角波、正弦波三種波形作為電激勵信號,利用高速攝像記錄ipmc的位移變形,並通過力傳感器實測了ipmc試樣末端的輸出力。For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions
針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機,本文提出一種基於六個離散位置信號的自同步svpwm (電壓空間矢量法)控制方法,用以削弱電磁轉矩脈動,分析了實現這種方法的主要控制環節,包括起動時電壓空間矢量的初始定位,阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。Realistic signals are made by summing sine waves of lots of frequencies, so that after some finite number of wavelengths they interfere destructively and you get a signal of finite width and duration
現實中的信號由各種頻率的正弦波組成,因此,在有限的波長數后,它們會干涉相消,你就得到一個有限寬度和有限延續的信號。In every signal you produce, from the sine wave frequency accuracy to the fast rise fall times of square waves, to
其好處是您能修飾所產生的每一個信號,從正弦波的頻率精度方波Point in the number of times of a repetition in period, or each of cycle number. calculate the unit to hz hertz, such as the frequency is 1000 hzs 1 khz signal 1000 every second then contain the cycle of the sine wave
指在一個周期內的重復次數,或每秒的周波數。計量單位為hz hertz ,如頻率為1000hz 1khz的音頻信號每秒便有1000個正弦波的周波。It has wide frequency width and high frequency relution. the maximum output frequency can get to 80m and the highest frequency relution can get to 1 u hz, the waveform memory is 64k. it has the important reference value for three classical structures - pc bus card, stand alone, vxi module
該任意波形發生器不僅能產生正弦波,方波,三角波等常用的標準信號,還可根據用戶的需要生成任意波形,具有寬頻帶,高的頻率解析度等特點,其波形最高輸出頻率可達80m ,頻率解析度可達1 hz ,波形最大存儲深度為64k ,對于目前三種典型的任意波形發生器的結構? pc總線插卡式,獨立儀器, vxi模塊都有重要的參考價值。The standard sine waveform is generated by looking up the sine table, and the triangular carrier waveform is produced by a reversible counter
Spwm信號的產生採用正弦波與三角載波比較的方法,標準正弦波採用查表法實現,三角載波用可逆計數器實現。Continuous single tune jamming is an effective jamming to linear frequency - modulated radar. however it can not suppress signal output after being full of the sidelobe suppress filter of the jammed bi - phase coded radar, no matter how great the power of it may be
單頻正弦波干擾對線性調頻雷達是一種有效干擾,但對於二相編碼雷達無論具有多大的功率在充滿二相編碼雷達接收機的旁瓣抑制濾波器后也不能壓制信號主瓣,因此是一種無效干擾。The signal testing unit examines directly the production parameter - the belt " s velocity and sends out electrical signal similar to sine wave. the signal handling and analyzing unit disposes of the sensor " s output signal by amplifying, plasticisering a / d transforming and measuring and displays it digitally. after the alarming and controlling unit compares the testing signal with the standard one and analyses, it will show the normal production situation or alarm at the abnormal state and control the related equipments if it is necessary
信號檢測單元直接檢測皮帶速度,並輸出近似正弦波的電信號:信號處理與分析單元對傳感器輸出信號進行放大、整形、 a d轉換和計算等處理,並進行數字顯示;預警、報警、控制單元將信號與標準信號進行比較,經分析后顯示正常狀態或對異常狀態進行聲、光預警、報警。The spwm algorithm using symmetrical sample in this controller, can alter its frequency and amplitude. the good performance of the bldc motor controller using dsp is verified by the experiment
本文在分析了幾種spwm調制方法的基礎上,將基於對稱采樣法的spwm調制演算法應用於本設計中,產生了可調頻調幅的正弦波脈寬調制信號。In the second part, the discussion focused on the principle of sine wave and square wave correlative phase discrimination principle
第二部分著重討論本課題選擇的正弦波與方波信號并行相關鑒相測距成像的方法。The single - chip function generator icl8038 can get synchronous sine wave of constant amplitude in pll as voltage control oscillation ( vco ), which is a basic signal source of static frequency converter
單片函數發生器icl8038在pll中作為壓控振蕩器( vco )產生同步等幅正弦波,可作為靜止變頻器的基準信號源。The general signal sources represented by arbitrary waveform generator ( awg ) have become the most popular instruments in modern testing domains. awg can not only generate conventional waves such as sine wave, triangle wave, square wave, etc, but also generate unconventional waves such as linear frequency modulation wave, phrase modulation wave, amplitude modulation wave etc, the most important, it can create arbitrary wave
由於它可產生包括各種理想及非理想的波形信號,不但可以產生純凈的正弦波、方波、三角波等常規波形,而且可以產生線性調頻、調相、調幅信號以及程式控制占空比的低占空比方波,更為重要的是,能夠根據用戶測試需求生成任意波形。The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )
硬體電路設計包括:工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路(恆流源電路、時基信號處理電路、被測信號處理電路)設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括:主程序流程圖、系統開機自檢程序流程圖、手動靜態測試程序流程圖、半自動靜態測試程序流程圖、自動靜態測試程序流程圖、動態測試程序流程圖、暫態測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦波信號和階躍信號,並對三種不同測試狀態(靜態、動態、暫態)下大量程脈沖變換電路輸出脈沖信號的頻率進行精確測量。In experiment process, aim at the current rotary encoders output is not ttl wave type, the writer designs the hardware integrated circuit by that can turn the current wave into ttl wave, and it obtains the good result. finally the thesis creates the pcb card of the chip module, and makes use of the hp signal occurrence apparatus 33120a finishing the on - line data collection, give out and analysis the experiment result
在實驗過程中,針對現有圓光柵編碼器輸出波形為正弦波,設計了正弦波轉為方波的硬體集成電路,取得了很好的效果;製作了下位單片機系統的pcb板;最後利用hp33120a信號發生器,對其發出的信號進行實時採集,給出了實驗結果並加以分析。So the vsr can operate in any power factor. internal model control ( imc ) design concept has been introduced to the unbalanced control system of vsr. with imc design concept, the unbalanced control system not only achieve zero steady state error of sinusoidal ac current, but also obtains strong robustness of the control system
由於在abc和靜止坐標系中,採用比例和比例積分調節器無法實現對時變正弦波信號的無差跟蹤控制,而在dq坐標系中需要用正、反兩套旋轉坐標系構成四個電流內環才能實現對正、負序dq電流的無差跟蹤。The signal by way of the interior several and analogy technology processing, by the sine wave pattern actuation loudspeaker, and in constructs the vice - sound volume control and the echo function, richer is had the sound the spatial feeling
信號經由內部的數位及類比技術處理,以正弦波型式驅動喇叭,並內建副音音量控制及迴音功能,令聲音更豐富更有空間感。Even if you start with something ( like a bump on a rotating neutron star ) that gives off a perfect sine wave signal, it won ' t stay that way by the time it gets into the data stream
即使你開始時探測到一個完美的正弦波信號,等到記錄它的時候可就是另外一個樣子了。分享友人