poor signal 中文意思是什麼
poor signal
解釋
信號質量差-
We asked some stragglers about it, and they said everybody went to the show looking very innocent ; and laid low and kept dark till the poor old king was in the middle of his cavortings on the stage ; then somebody give a signal, and the house rose up and went for them
他們說，大夥兒都去看演戲，彷彿若無其事似的。大家沉住氣，不露一點兒風聲。后來當那個倒霉的老頭國王在臺上起勁地又蹦又跳的當兒，有人發出了一聲信號，全場湧上前去，把他們給逮住了。 -
Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。 -
Due to the hardware characteristic ' s limitation, such as the poor speed of a / d, d / a conversion and dsp process, the most part of sr system adopt middle course. that is to say, by using the special digital converter or running relevant arithmetic, it converts the radio signal to intermediate frequency signal and completes the base - band signal process that is n ' t the veriest sr and is named " software defined radio ( sdr ) "
由於受到硬體性能如a d 、 d a及dsp晶元處理速度的限制，目前的軟體無線電系統多採用折中的實現方案，增加專用的數字變頻器或者運行數字變頻演算法，將射頻信號變頻到中頻，然後再進行基帶信號處理，這樣的軟體無線電系統又被稱之為「軟體定義無線電」 ，它並不是真正意義上的軟體無線電。 -
On mri, the tumor showed a slightly low signal on t1 - weighted images, a high signal on t2 - weighted images, and poor enhancement after gadolinium injection
磁振造影檢查，這類腫瘤在t1影像是呈現低訊號強度， t2影像是呈現稍微高訊號強度，打過顯影劑以後腫瘤只呈現輕微的顯影。 -
At night or in poor visibility it may be difficult for another road user to see your signal
在夜間或能見度低的情況下，其他道路使用者很難看見騎單車者的信號。 -
Nowadays, the equipments of uroflowrate mensuration which are adopted by the medical treatment departments of our country are the facilities in which the kernel chips are single chip micyoco ( mcssl ). their ability of data process is limited, especially at the situation where we need the higher precision of result. furthermore, they are poor in filter the interfere noise which is mixed with the signal
當今國內的醫療部門所採用的尿流率測量設備是以單片機（ mcs51 ）為核心的處理系統，對數據的處理能力有限，尤其是在精度要求較高的場合，對信號中疊加的噪聲干擾信號的濾除效果較差。 -
While motion artifact is caused by non - regular shiver of patient. given enough time delayed, motion artifact signal have poor or even no self - corelation. so do the other sort of interaction noise. thus these two category of signal may be distinguished by there characteristic of self - correlation, and the noise may be eliminated
運動偽差，一般都是由被測對象不自覺地或不受控地抖動引起，因而只要時間足夠長，運動偽差信號在時間上相關性極弱或先後不相關;同樣，其他的高低頻干擾如高頻電刀的干擾亦是如此。 -
Phase - based optimal image thresholding can deal with poor contrast, high noise to signal ratio, complex patterns, and variable modalities in the gray - scale histograms, and it can obtain very good result
該方法能夠很好的處理低對比度，高信噪比，內容復雜以及多種形狀的灰度直方圖的圖像。 -
Poor signal conversion can cause interface problems
不良的信轉換能引起界面問題。 -
By building the antenna at a location with a poor effective conductivity of the ground, and by grounding the ends of the feedline / antenna, the signal is forced deep down into the earth, making the earth itself the effective radiating element
通過將天線建造在低導電性的地點，並且將饋線/天線的終端接地，信號被迫深入地球，使得地球本身成為一個有效的輻射單元。 -
Because of the obvious disadvantages of traditional digital signal processor such as poor expandable capability and a much higher price, we have designed pc _ based digital signal processing instrument, according to the principle of digital signal processing and methods of computer
傳統的數字信號處理儀存在著功能可擴充性差、性能價格比低的缺點。為此，本文根據數字信號處理理論以及計算方法的相關原理，開發出一套在通用計算機上實現數字信號處理功能的測試分析系統。 -
Your horses got as far as ranelagh, when they darted forward like mad things, and galloped away at so fearful a rate, that there seemed no other prospect for myself and my poor edward but that of being dashed to pieces against the first object that impeded their progress, when a strange - looking man, - an arab, a negro, or a nubian, at least a black of some nation or other - at a signal from the count, whose domestic he is, suddenly seized and stopped the infuriated animals, even at the risk of being trampled to death himself ; and certainly he must have had a most wonderful escape. the count then hastened to us, and took us into his house, where he speedily recalled my poor edward to life
你必須知道，我親愛的朋友，當我駕著你的馬跑到達蘭拉大街的時候，它們突然象發了瘋似的向前直沖，以致只要有什麼東西在前面擋住它們的去路，我和我那可憐的愛德華一定會撞得粉身碎骨，當時我覺得一切都完了，突然一個相貌古怪的人，或者說一個阿拉伯人或努比亞人，總之，是一個黑人，在伯爵的一個手勢之下他原是伯爵的僕人，突然上前來抓住了那匹暴怒的馬，甚至冒著他自己被踩死的危險，使之免於死，實在是一個真正的奇跡。 -
At present the identification signal of rolling bearing is based on analog monitoring system composed of analog instrument such as fft analyzer, amplitude analyzer and so on. the system has the shortcoming as follows : not enough friendly user interface, unitary function, under abundant analytical contents, poor generality, long developing period, high cost and so forth
目前對滾動軸承信號識別主要採用模擬監測系統，系統均由模擬量儀器組成，如fft分析儀、幅值分析儀電平記錄儀等，系統存在操作界面不夠友好，功能單一，分析內容欠豐富、通用性差、開發周期長、成本高等缺點。 -
The main advantageous features of this project lie in the fact that it has resolved the problems of the lomw base stations, such as limited coverage areas, few channels, poor signal on high way and in high speed car, easily turn off and frequently switch etc. the processing response of 500mw base station instead of 10mw base - station, has effectively accounted for nearly all of the relative defects
本方案解決了西安pas網路由於開始採用10mw基站，所引起的單基站覆蓋范用小，通道少，特別在中、高速行駛的車輛上，手機容易產生切換頻繁、掉話率高等問題，同時在覆蓋范圍內盲區較多、信號質量較差，給用戶通話造成一定影響。 -
The large physical size and limited isolation ( due to materials requirements and construction ) make this type of relay a poor choice for signal switching
較大的物理尺寸和受限的隔離（由於材料和構造的要求）使這類繼電器不適合於信號切換。
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