sine signal造句
例句與造句
- The second order circuit stimulated by sine signal
正弦信號激勵下的二階電路 - The detection of weak sine signals using special chaotic system
微弱正弦信號的一種新的混沌檢測系統 - Sampling theorem for band - limited low - pass signal with disturbance from a sine signal
正弦信號干擾下低通帶限型頻譜信號的采樣 - The main purpose of this thesis is to try to detect weak sine signal embedded in chaos
本文研究的目的是檢測混沌噪聲背景中的微弱正弦信號。 - The principle of utilizing digital correlation method to detect the phases of the two sine signals with the same frequency was discussed
介紹了采用相關分析法測量兩路同頻率正弦信號相位的數字化方法基本原理。 - It's difficult to find sine signal in a sentence. 用sine signal造句挺難的
- Because frequency - shift signal is a kind of modulation signal , it ' s waveform is two ac sine signal of alternating i . e . upper frequency and lower frequency which was generated by low frequency modulating middle frequency
由于移頻信號是一種調頻信號，其波形為低頻信號調制中心載頻信號后產生的低端載頻（下邊頻）和高端載頻（上邊頻）兩個交替變化的正弦交流信號。 - The purpose of subject is to achieve the phase difference measurement of two 50 hz sine signals . based on the further analysis about all kinds of phase measurement system , the research of phase measurement system for 50 hz sine signals is made in the paper
本課題是以實現兩路工頻正弦信號的相位測量為目的，在對國內外的各種相位測量系統進行了深入分析的基礎上，針對相位測量系統的各個環節進行了研究。 - The relationship between the clock jitter and the sampling sequence of a sine wave is studied , and a new method to measure the jitter and distribution of a clock signal with pico - second resolution is proposed using adc sampling based on estimating method of the parameters in sine signal
摘要研究了時鐘抖動與正弦信號的采樣序列之間的關系，并在正弦信號參數估計法的基礎上，提出一種利用adc采樣測量皮秒量級的時鐘抖動大小和分布的新方法。 - 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。 - One new method that the uwb signal can be received ambiguously has been presented in this dissertation . furthermore , the sampling lfm signal becomes two sine signals with different frequencies based on two different delay processes . based on fft and remainder algorithm , the modulation rate and initial frequency of sub - sampling lfm signal are estimated precisely and unambiguously in negative snr
該方法通過在數字域對信號進行兩路不同的延時和余數定理實現欠采樣條件下超寬帶線性調頻信號的調制斜率和初始頻率的無模糊估計,在不降低參數估計精度的前提下,解決了欠采樣方法引起硬件復雜度增加的問題。 - 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于基波數時，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，采樣頻率必須大于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。