weak signals 中文意思是什麼
weak signals
解釋
低噪聲與弱信號檢測-
Abstract : radiate thermometer uses a high definitive operation circuit in the modulation and linerization of weak optical signals. the theory of colorimetry was used in measuring the temperature. analogic channel and digital interfaces were added in order to expand the instrument. a kind of double channel ' s photocolorimeter including its hardware and software is introduced
文摘:輻射測溫計採用高精度運算電路，對光弱信號進行調制和線性化處理，運用比色法原理對溫度進行檢測.為了便於儀器擴展，增加了模擬量輸出和數字介面，並對光纖式雙通道比色高溫儀的硬體與軟體的關鍵部分作了簡要介紹 -
The algorithm principle, hardware design and software design of the scheme are proposed and experimentally demonstrated ; the main contents of this thesis are as follows : firstly, we study the principle of the fiber optic weak magnetic sensor based on magnetostrictive effect. after analyzing the characters of the magnetic field sensing signals, we know that the magnetic field sensing signals ’ fundamental component is proportional to input dc magnetic field
敘述了該方案的原理、軟硬體設計過程，並通過實驗進行了驗證，本文主要內容如下:首先，研究了基於磁致伸縮效應的光纖微弱磁場傳感器傳感原理以及輸出信號的特徵，分析得出在干涉儀處于正交工作點時，傳感器輸出信號的基頻分量與被測直流磁場成正比關系。 -
Northern blot results show that nos. 66 - 1, 84, 89 - 1, 97, 108, 152, 175 and 233 have stronger signal in sp6 - tester than in sp6 - driver ; and no. 23 has weak signal only in sp6 - tester, nos. 94, 165, 172, 185 and 191 have similar hybridization signals in both sp6 - tester and sp6 - driver ; nos. 4, 17, 18, 28, 6 9, 101, 156 - 1, 157 - 1 and 183 do not reveal hybridization signals in both sp6 - tester and sp6 - driver ; the results of sequencing and blastn and blastx on ncbi indicate that no. 23 cdna ( 846bp ) has significant alignments with nicotiana tabacum mrna for elicitor inducible beta - 1 - glucanase nt - sube76, and arabidopsis thaliana clone 7119 for glycosyl hydrolase family 17 ( protein id : at5g55180. 1, supported by cdna : 7119, supported by cdna : gi _ l 87001 54 ) and arabidopsis thaliana beta - 1 - glucanase - like protein ( gi _ 2 1594590 ) ; no. 84 cdna ( 560bp ) has significant alignment with lotus corniculatus aspartate aminotransferase mrna ( complete cds length = 1685, gi | 2605931 | gb | af029898. 1 | af029898 ) for aspartate aminotransferase ; no. 89 - 1 cdna has significant alignment with arabidopsis tha
與同源性最高的擬南芥類似晚期胚胎發生高豐度蛋白比較，二者都具有lea 2結構域、保守分泌蛋白cog5608結構域和低復雜度區，都具有pkc磷酸化位點、酪蛋白激酶磷酸化位點、 n十四酞化位點和酚胺化位點，所不同的是： （ ）在結構功能域上， 152全長cdna編碼的蛋白質序列中多了1個lea 2結構域、 l個保守分泌蛋白cog5608結構域和1個低復雜度區； （ 2 ）在功能位點上， 152全長cdna編碼的蛋白質具有酪氨酸硫酸化位點、多了l個酪氨酸激酶磷酸化位點和1個可能的天冬氨酸富集區，但沒有n糖基化位點； （ 3 ）擬南芥類似晚期胚胎發生高豐度蛋白的lea 2結構域具有顯著性（ e -
By using a counter and an operation microprocessor, this paper analyses the measuring method and designs an instrument of edm sinking process in discharge state. this instrument takes samples of voltage, current signal and strong and weak of high frequency signals of detecting voltage amplitude, translates them into various time pulses in discharging state. and a counting unit turns these pulses into digital signals, then send them to a microprocessor. finally various discharge time percentages are sent to the control tache
通過采樣電火花加工放電間隙的電壓、電流信號和檢測電壓幅值上的高頻信號的強弱，得出反映間隙放電狀態的各種時間脈沖，利用計數器分別對其計數，再送給單片機運算處理，輸出控制環節所需的各種放電狀態時間百分數。 -
Abstract : by using a counter and an operation microprocessor, this paper analyses the measuring method and designs an instrument of edm sinking process in discharge state. this instrument takes samples of voltage, current signal and strong and weak of high frequency signals of detecting voltage amplitude, translates them into various time pulses in discharging state. and a counting unit turns these pulses into digital signals, then send them to a microprocessor. finally various discharge time percentages are sent to the control tache
文摘:通過采樣電火花加工放電間隙的電壓、電流信號和檢測電壓幅值上的高頻信號的強弱，得出反映間隙放電狀態的各種時間脈沖，利用計數器分別對其計數，再送給單片機運算處理，輸出控制環節所需的各種放電狀態時間百分數。 -
The clues and techniques to improve the resolution of data processing are 1 ) removing the affection of near surface factors on data acquisition, including static correction and noise eliminating technique etc, 2 ) broadening the frequency band of pre - stack seismic data, including amplitude compensation and pre - stack deconvolution etc, 3 ) improving s / n ratio of high frequency and weak reflection signals through multiple coverage with high precision velocity analysis, residual static correction and high - order nmo, raising " dead line of high frequency reflection ", and 4 ) identifying post stack effective reflection frequency band, enhancing dominant frequency and so on
主要包括：消除近地表因素對資料採集的影響，包括靜校正和噪音壓制技術等；疊前拓寬地震資料領帶，包括振幅補償和疊前反褶積技術等；藉助高精度速度分析、剩餘靜校正和高次項nmo技術，通過多次覆蓋疊加，消除資料中隨機噪聲干擾、提高資料信噪比，尤其是高頻端反射信息的信噪比，改善高頻反射和弱反射信號信噪比，提高「高頻反射死亡線」 ；疊後有限反射頗帶識別、抬高優勢頻率等。 -
The product has the following characters : all - purpose input, completed separated signal channels, collection of the signal data by scanning, the display technique of lcd big screen, flash memory ; capacious compatible floppy disk, 36 types of signals, multiple alarms, communication of rs232 / 485 and hart confered - link with a view to second generation technique of the field - bus. during the developing course, i used the method of reliability design to design hardware, and researched carefully the process of weak signal. pass to practice, the product has achieved all aim of the design
系統在功能上實現了萬能輸入，信號通道之間的完全隔離，信號的掃描採集，大屏幕lcd顯示技術， flash存儲器進行數據存儲，大容量的具有兼容性的電子軟盤， 36種信號方式，多種報警方式， rs232 / 485通訊，以及著眼于下一代的現場總線技術的hart協議介面等。 -
For instance, if one is performing a watch - keeping task that requires vigilance, [ color = red ] in which [ / color ] he is responsible for detecting weak signals of some kind ( e. g, watching a radar screen for the appearance of aircraft )
比如，看守工作是需要保持警戒的，看守員有責任發現某些種類的微弱信號（例如，觀察雷達屏幕發現飛行器） 。 -
[ size = 3 ] for instance, if one is performing a watch - keeping task that requires vigilance, [ color = red ] in which [ / color ] he is responsible for detecting weak signals of some kind ( e. g, watching a radar screen for the appearance of aircraft )
比如，看守工作是需要保持警戒的，看守員有責任發現某些種類的微弱信號（例如，觀察雷達屏幕發現飛行器） 。 -
A potentially feasible method is the use of a chaotic system ' s high sensitivity under condition to detect weak signals, which is quite different from all present methods. fixing parameter of components in a nonlinear circuit, chaotic orbits change with the measured signal. a distance has been defined
利用混沌系統的初值敏感性進行小信號測量是一個很好的有應用潛力的方向，它的測量原理與現有的測量原理完全不同，其基本思想是將待測信號作為混沌系統的初值，在參數不變的條件下，利用混沌系統的初值敏感性，使混沌軌道隨待測信號的變化而變化，定義軌道距離，通過測量軌道距離的變化即可測得該小信號。 -
By thorough study of chaos, more and more researches show that a lot of weak signals are embedded in the strong chaotic noise
隨著對混沌學的深入研究，越來越多的科學研究表明很多微弱信號湮沒在具有混沌行為的背景信號里。 -
Detection of weak signals in powerful chaotic and noisy background
強混沌和噪聲背景下微弱信號的檢測 -
Detection of low noise weak signals
低噪聲與弱信號檢測 -
Therefore, metals moving upwards from mineralizations may be absorbed and form weak geochemical anomalies ( weak signals ) in surface loess. the metals can be effectively extracted by neutral salt. loess - covered area in china is primarily distributed at the semiarid region, the secondary carbonates, which were formed after precipitation of ions through evaporation and capillary processes, are widespread in the surface soil
黃土覆蓋區主要分佈在乾旱半乾旱地區，次生碳酸鹽在地表土壤中普遍存在，蒸發所產生的毛細作用、地氣流的上升作用等所帶入的各種形式金屬元素，在地表土壤（黃土）與碳酸鹽發生共沉澱或被吸持。 -
For inevitable interference and error under complex ambient backgrounds, conventional detectors for weak signals will not work well
在信號檢測尤其是微弱信號和復雜背景環境下的信號檢測，常規檢測器的效果不盡如意。 -
Furthermore, weak signals are found on the centromeres of many chromosomes. unlike 18s, pines have 1 - 2 pairs of 5s rdna sites, except for p. armandi that has four pairs. each pine could be discriminated by its rdna fish karyotype, although most of these pines cannot be distinguished by traditional karyotype analysis
除了華山松ssd3na有旱對位點，馬尾松只有1對位點外，其它松樹的ssrizna位點數目均為2對， 、並且在雙維管柬亞屬植物中有一對屬於弱位點。 -
To detect and track weak signals, feature extraction is studied on the base of feature anlysis, and a viterbi spectrum line tracker with double thresholds is exploited
為了加強對弱信號的檢測和跟蹤，在特徵增強的基礎上，研究了特徵提取的方法，開發了雙閾值viterbi線譜跟蹤器。 -
Considering the charactristics of the radio communication through stratum ; using single antenna with short circuit terminal, single side - band modulation and receiving technique of weak signals ; a proposal of mine radio communication through stratum is presented
針對穿透地層無線通信的特點，採用終端短路單級天線及單邊帶調制和弱信號接收技術，提出一種可行的穿透地層礦井無線電通信系統的方案。 -
The study of characteristics of the nonlinear system. realization of the adaptive sr algorithm of detecting the characteristic information of practical weak signals overwhelmed in strong noise
研究了非線性系統特徵，構建實用於檢測強噪聲背景下弱信號的特徵信息的自適應隨機共振演算法。 -
With farther research into the sr mechanism and its adaptive algorithm, adaptive sr technology is becoming a new technology for detecting weak signals overwhelmed in strong noise. so that, to study adaptive sr technology and apply it into actual signal detecting will greatly make sense
隨著人們對隨機共振機理及其自適應演算法研究的進一步深入，自適應隨機共振技術將成為強噪聲控制下的弱信號檢測的一種新的技術。
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