square signal 中文意思是什麼
square signal
解釋
矩形波信號-
In order to satisfy the veracity and the robustness against time - variable noise of the aoct, a new square root kalman adaptive filter arithmetic with time - variable noise statistic is presented in this paper. in addition, the wavelet analysis is applied to inspect the singularity of the measured current, and an adaptive signal - noise decomposer for aoct is designed
為了滿足aoct自適應控制的準確性和時變噪聲魯棒性的要求，論文將kalman濾波理論引入到自適應濾波中，並應用矩陣理論提出了一種新的時變噪聲統計的平方根kalman自適應演算法。 -
Based on the theories described above, calculation formula of general dimension of least square measure and multi - fractal fault diagnosis and analysis system have been established with borland c + + builder 5. 0, and checked by pure sinusoidal and cosine signal and sinusoidal signal with noise, and verified by the examples
基於上述原理，建立了最小二乘法的廣義維數計算公式，用borlandc + + builder5 . 0編制了以廣義維數計算分析為基礎的多重分形故障診斷系統，並對標準的正弦信號、餘弦信號及帶有噪聲的正弦信號進行了驗證。 -
There are many ways of modulating signal about bpsk such as castas loop, square loop, etc. usually the carrier wave is put forward firstly, then the purified carrier wave is used to demodulate the output data ( all these things are usually completed in the same loop ). these methods have their strong points but at same times, it is difficult to design and achieve these ways
有關bpsk調制信號的解調方法很多，例如castas環，平方環等，這些方法一般都是先提取載波，然後用提純的載波去解調出傳輸的數據（大都在同一個環路內完成） ，這些方法的優點是顯而易見的，但是在某些條件下，這些方法的設計和實現卻很困難。 -
The two chromatic aberrations were separated from chrominance signal adopting square demodulation
採用正交解調的方法實現了兩種色差信號的分離，並完成了該電路的設計。 -
The factory covers an area of more than 10 000 square meters, owning television production line with advanced technology, production line of the multi functional inner works, automatic plug in package machine of high speed, whole rule signal send system, large - scale molding plastics machine of high performance, chassis automatic spraying production line and relevant corollary equipment
公司佔地面積10000多平方米，擁有國內先進水平的電視機生產線、多功能機芯生產線、高速自動化插件機、全制式信號發送系統、高性能大型注塑機、機殼自動噴塗生產線及其相關配套設備。 -
From the result we get the following conclusion : for narrow - band signal, the effect of the method based on fft is best. for wide - band signal, when snr is up to certain degree ( higher than - 7db or so ), the curves of square error of modified methods are more obvious and closer to crb. for an echo composed of more than one frequency or direction, space - frequency distribution could show more direct information of frequency and direction, which is more advantaged to make precise judge and estimation for doa of echo
從估計結果發現，對于窄帶回波信號，基於fft的方法估計性能大大優于其他方法；對于寬帶回波信號，在信噪比達到一定程度（高於約- 7db ）時，補償后的幾種估計法的性能改善均比較明顯，誤差曲線越來越接近crb曲線；對于回波中存在多頻率多方位的情況，空間?頻率分布圖能提供較為直觀的頻率及方位信息，因此應用空間?頻率估計法來進行方位估計，更有利於進一步對回波的具體方位進行準確判斷和估計。 -
Rules of english square : english is the only language used, if can ' t speak fluently, use hand signal and body language
廣場規則：只可以用英文溝通，必要時可用手語或肢體語言，決不允許用中文。 -
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 -
To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error
鋁電解生產現場電磁干擾非常嚴重，為此我們將需要測量的模擬信號就近轉換為頻率脈沖后再傳送到控制核心；採用浮地接入方式消除槽電壓信號中的共模成分；設計了量程自動切換電路以解決槽電壓的動態范圍寬和測量精度高的矛盾；用最小二乘法進行曲線擬和以降低測量的系統誤差。 -
The computer simulation results verify the validity of two adaptive algorithms applied to circular array. the algorithms are least square based on qr decompose ( qrd - ls ) and sampling matrix inversion based on qr decompose ( qrd - smi ). then we apply circular array with wideband signal
其次，驗證了基於qr分解的最小二乘演算法（ qrd - ls ）和基於qr分解的采樣矩陣求逆方法（ qrd - smi ）兩種自適應演算法在均勻圓陣中的有效性。 -
A mathematic model of the motor is builded and emulated through matlab. the low - speed and constant - torque, high - speed and constant - power state is analyzed and researched, also the software approach of simulation to the driver has been done, a digital signal processor tms320lf2407 is developed successfully to control the perm square - wave bldcm driving airscrew of solar powered unmanned engine. it is useful to the further study
在matlab下建立了電機的數學模型，通過計算機模擬，驗證了數學模型的正確性，同時在理論上對低速恆轉矩高速恆功率運行進行了分析與研究，提出了一種用模糊控制的方法實現恆功率控制，並對驅動器進行了系統模擬，成功的研製了以數字信號處理控制器tms320lf2407為控制核心的驅動器，控制無刷直流電動機驅動太陽能無人飛機的螺旋槳，為後面繼續研究工作提供了參考。 -
The signal thus received will no longer look like a square wave but will be distorted in shape and spread out in time.
這樣收到的信號看起來不再象矩形波，而是受到畸變，並且持續時間延長了。 -
The power includes the following characters : being able to output signal - pole, double - pole and multi - pole spwm waves ; being able to output square wave ; being able to modulate frequency and modulate output voltage range
該電源具有如下特點：可以輸出單極性、雙極性和混合極性spwm波；可以輸出方波；可調頻調幅。 -
Based on chaos critical state detection method, two approaches are used : one is that making a pretreatment on dsss signal to take out the period information of the signal. the other is that starting from the analysis of the sensitivity of duffing system to ambi - polar square wave modulated by sine signal, the
通過兩種途徑:對信號進行預處理，提取出其中的周期信息，轉化為單頻信號檢測;從研究duffing振子對方波調制信號的敏感性出發，全面分析其中的間歇混沌現象，實現信噪比- 20db以下dsss信號的檢測。 -
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。 -
In chapter 4, we design a new conductivity detector for ion chromatography. the square wave is used as stimulating signal and the sampling is triggered by synchronization pulse at suitable time. by using these measures, the effects of doublelayer capacitance and polarization on the measurement are eliminated and the accuracy is improved
摘要第四章介紹了一種新型的以方波激勵脈沖采樣為原理的二電極電導檢測器，這種電導檢測器採用了方波為激勵信號，在適當時刻用同步脈沖觸發采樣，從而在較大程度上克服雙層電容和極化的影響，且在結構設計上比目前國內常用的五電極電導池簡單。 -
Based on iec standards, the methods of designing square demodulator, bandpass - weighted filter, and smoothing filter are presented. besides, the signal conditioning circuits and online statistical analysis methods of instantaneous flicker value are given. matlab simulink is also used to simulate the measuring process of voltage fluctuation and flcker
基於iec標準要求，設計了實現數字式電壓閃變測量的平方解調器、帶通加權濾波器、平滑濾波器等各環節，給出了信號調理電路和瞬時閃變值在線統計分析方法，並應用matlab系統模擬工具simulink對電壓波動和閃變測量全過程進行了數字化模擬。 -
A kind of mud based on transversal equalizer is recommended, and the performance analysis of ds - cdma systems based on that mud has been done under synchronous channels. then the expression of output signal is deduced. also, the relations among sinr of output signal, snr and correlation matrix of spread code the least mean square error ( lms ) adaptive algorithm is applied to the mud
論文引入基於橫向均衡結構的多用戶檢測器，用矩陣方法推導了awgn通道下、同異步系統中信號輸出表達式，依據最小均方差準則，討論了同步方式下檢測器的輸出信號干擾比與信噪比、擴頻碼相關陣以及用戶功率大小等因素間的關系。 -
Application of square demodulation analysis in fault diagnosis for mechanical signal
平方解調分析原理及在機械信號故障診斷中的應用 -
Detection of weak square signal in strong noise with a chaotic oscillator
用混沌振子檢測淹沒在強背景噪聲中的方波信號
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