useful signal造句
例句與造句
- This method gets rid of the interferential signal successfully but does not lose useful signal
該方法能有效地去除干擾信號，又不會損失有用信號。 - It is concluded that flp is better than other two filters in reducing the arw , constraining the high frequency noise and reserving the low frequency useful signals
對比的結(jié)果表明, flp濾波方法能有效地抑制高頻噪聲,并保留陀螺信號的有用的低頻量。 - With the research development in antenna area , smart antenna , which could dynamically adjust antenna pattern in order to trace useful signals and suppress interference and noise , comes into researchers ’ sight
隨著天線領(lǐng)域研究的進展,一種可以動態(tài)調(diào)整天線方向圖,有效跟蹤有用信號,抑制干擾和噪聲的天線系統(tǒng)? ?智能天線系統(tǒng),進入了研究者的視野。 - So how to select threshold effectively to avoid lose useful signal is problem worth to research . some research is processed here on the problems above as follow : ( 1 ) . in exordium the research purpose and means is introduced
因此，在去噪的過程中如何更有效地進行閾值選取，使得噪聲被去除的同時盡可能的避免有用信號的丟失，也是一個值得研究的問題。 - Under the research of the characteristic of three classical analog filter with simulation software - matlab , this paper devised lowpass circuit that not only can keep the useful signal out of distortion but also benefits the following sample tache and filter tache
用matlab分析了三種經(jīng)典模擬濾波器的濾波性能，設(shè)計出了能保持有用信號不失真又有利于后面的采樣和數(shù)字濾波環(huán)節(jié)的低通電路。 - It's difficult to find useful signal in a sentence. 用useful signal造句挺難的
- Partial wavelet coefficients ca n ' t be set zero when the threshold is undersize so parts of noises are retained and some useful signals will be taked off when the threshold is iusto major so parts of useful signals are lost . these cases result in dissatisfactory denoising
如果閾值選取過小，那么有一部分的噪聲小波系數(shù)將不能被置零，從而在去噪后的信號中保留了部分噪聲信息，使去噪的效果變差。 - Based on the theory of dsss , the received signal can be despreaded and demodulated only when the phase of spread sequence in the receiver is equal to the phase of the received signal , or the useful signal would be overwhelmed by the noise
根據(jù)直接序列擴頻原理，只有當接收端的本地擴頻序列與接收信號中擴頻序列相位一致時，即擴頻序列同步時，才能實現(xiàn)接收信號的解擴和解調(diào)，否則信號將淹沒在噪聲中。 - This show us a very useful signal in studying the systematic property in the early stage of the evolutive colliding system , that ' s , a non - zero flow component of those particles observed by experiment could be interpreted as a signal for partonic flow
因此在碰撞早期產(chǎn)生的重子數(shù)輸運是高能重離子碰撞中的一個重要的物理量，它影響著初態(tài)部分子的平衡，粒子的產(chǎn)生，系統(tǒng)的熱力學或化學平衡以及集體膨脹等過程。 - For implementing conveniently the detection , identification and extraction of useful signal from the collected signal , we make a brief analysis to the application of correlation function in digital signal processing based on its three basic principles
摘要為了比較方便地對測量所得到的信號實現(xiàn)有用信號的檢測、識別和提取，根據(jù)相關(guān)函數(shù)的3條基本性質(zhì)，對相關(guān)函數(shù)在數(shù)字信號處理當中的應(yīng)用進行了一些簡要的探討。 - First please make sure the useful signal has very good snr before you input it to amplifiers chain , then you can calculate how much gain and nf you need to get the targeted signal amplitude and noise level , based on this you can choose the right components to design amplifiers chain
后才將其輸入放大器鏈，接著計算獲得目標信號振幅和噪聲水平所需的增益與nf的大小，最后根據(jù)這些數(shù)據(jù)選擇合適的器件設(shè)計放大器鏈路。 - On this basis , the wavelet decomposition established on the time - domain correlation detection method provides a feasible scheme that improves performance , in a situation when it is impossible to design the pre - filter because the frequency band of the useful signal is unknown
本文在此基礎(chǔ)上加以擴展,分析了dsss / bpsk信號的高階統(tǒng)計量,并以此為基礎(chǔ)進行檢測。 4 .倒譜分析和周期譜分析近年來被廣泛應(yīng)用于對dsss / bpsk信號的研究。 - Assigning serial different address code to different subscribers , useful signal is taken out of the same time slot and frequence , and is transmitted with one share channel . at received end , system makes use of completed address code from sending end to do correlative check and take out useful subscriber signal . the other address code signals are treated as broadband disturbing signal which is removed . in radio environment of existing variable disturbtion and muti - way declining , expand frequence signal ’ s broadband characteristics can improve system performance obviously . cdma mobile telecommunication system has some better characteristics , such as anti - disturbing 、 anti - way declining 、 secrecy 、 capacity 、 utilizing rate of frequence resource and so on , than other mobile telecommunication system
Cdma ( codedivisionmultipleaccess )移動通信系統(tǒng)的技術(shù)基礎(chǔ)是基于擴頻技術(shù)的碼分多址,通過給不同的用戶分配各自特定的地址碼序列,將處于相同時隙和頻率的用戶信號分離開來,采用共享信道方式傳輸信息。在接收端,系統(tǒng)利用與發(fā)送端完全一致的本地地址碼對接收信號進行相關(guān)檢測,提取需要的用戶信號,而將其他使用不同碼型的信號視為寬帶干擾而從中剔除掉。 - The analysis shows that by using correction function processing to the collected signals , the periodicity of the signal can be checked conveniently , the frequency - domain response of linear systems with uncertain parameters can be identified , useful signals can be checked out and extracted from the noise
由分析可知，對采集到的信號做相關(guān)函數(shù)的處理可以方便地對信號的周期性進行檢測，確定未知參數(shù)的線性系統(tǒng)的頻域響應(yīng)，檢測噪聲中有用信號，并對噪聲中的信號進行提取。 - In this study , the g . 723 . 1 algorithm which is a voice compression standard adopted by the international telecommunications union ( itu ) is chosen to encode the voice signals . after channel coding , a qpsk modulation is adopted to transmit the useful signal . for the receiver , a scheme where synchronization and equalization are jointly optimized is used to reduce intersymbol interference caused by channel multipath propagation
本論文對數(shù)字語音壓縮算法進行研究，采用符合itu標準的g . 723 . 1的語音壓縮編解碼算法對原始語音進行編碼，并采用帶寬利用率較高的相位調(diào)制技術(shù)對壓縮語音進行傳輸，同時結(jié)合自適應(yīng)均衡等技術(shù)來有效地克服信道多途傳播產(chǎn)生的碼間干擾。 - It is the first time that the theory of wavelet has been applied in the signal processing of the codog power plant experiment rig and wavelet transform denoising was used , it may keep the aiguille and saltation parts , wipe off the noise and pick up the useful signal , it is benefit to analysis the result in experiment
把小波分析理論應(yīng)用于codog實驗臺信號處理中，用小波變換進行信號消噪，可以很好的保存有用信號中的尖峰和突變部分，將信號的噪聲部分去除，從中提取出于有用信息，更有利于實驗結(jié)果分析。
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