direct signal 中文意思是什麼
direct signal
解釋
直達信號-
It is approved that the proposed method has higher antinoise and signal - to - noise ratio than the direct correlation method
能過數字模擬對比表明，該方法優于直接相關定位法，具有較強的抗噪聲能力，提高了信噪比。 -
Both mechanical damage and insect herbivory make plants emit damage - induced volatiles which not only have the functions of indirect and direct defenses but also can server as interplant. alarming signal
摘要植物在遭受到機械損傷或昆蟲取食后釋放出的傷誘導揮發物，除了具有間接防禦和直接防禦功能外，還具有作為報警信號在植株間傳遞傷害信息的作用。 -
In the thesis, a signal processing scheme of polarization - insensitive fiber optic michelson interferometric magnetic sensor is described : making the interferometer work near the quadrature with closed loop controlling working point method, the fundamental frequency component of the magnetic field sensing signals can be detected to measure the input direct current ( dc ) magnetic field by phase sensitive demodulation
本文主要介紹了偏振無關光纖michelson干涉型微弱磁場傳感器信號處理的方案:通過閉環控制工作點演算法使干涉儀工作在正交工作點處，再利用相敏檢波演算法提取傳感器輸出信號的基頻分量，以測量直流磁場的大小。 -
Ssr direct - reversing control signal output transmission output
15 v輔助變送輸出或控制輸出 -
Ssr direct - reversing control signal output
Ssr固態繼電器控制信號輸出 -
As an example, the detection problem of noise frequency modulation jamming signal was analyzed, two accumulation detection methods, direct accumulation detection and binary accumulation deteceion, were proposed, and the detection probability of the two methods was calculated
摘要以噪聲調頻干擾為例，對干擾信號的檢測問題進行了分析，提出直接積累檢測和二進制積累的檢測方法，並計算了兩種方法的檢測概率。 -
The subject derives from electronic equipment bureau of electronic information industry of department of general equipment of china. the subject researches dds ( direct digital frequency synthesizer ) signal source of the frequency agile signal generator. it plays a good role in the important pre - research project that is the test technology of tactics anti - jamming for communication transceiver synthesis
本課題是總裝備部電子信息部電子裝備局下達的預研項目? ? 《戰術抗干擾通信電臺綜合測試技術》中的信號源部分（捷變頻信號發生器中的dds信號源部分） 。 -
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。 -
Because hrv signal is unevenly sampled, direct spectrum estimation will cause wrong result. resample on hrv signal is necessary. in this chapter after comparing different evenly sampling methods, the best way - cubic spline interpolation is adopted in spectrum estimation
由於心率變異信號是一種不等間隔采樣信號，不能直接採用傅立葉變換的方法進行頻譜分析，因此將心率變異信號等間隔化是必要的。 -
Flexible dimming control utilizes either an analog control signal or direct digital pwm control without external rc filtering. this also increases dimming accuracy at low brightness levels
電路採用靈活的調光控制方式，既可輸入模擬控制信號，也可直接輸入數字脈沖寬度調制信號而不需要外置rc濾波器。 -
Dc voltage signal : 0 - 500v direct input ; if the voltage exceed 500v it can adopt voltage dropping device to transform into voltage signal whose full range is 100v to input
直流電壓信號： 0500v直接輸入，超過500v可採用降壓裝置轉換成滿量程為100v的電壓信號輸入 -
The works we have done as below : the design of whole structure of the non - confocal lif detection system ; the design of the device to couple excitated light into the smf, transport 532nm and 635nm laser direct to the detection area ; designing the device to divide, filter and detect the fluorescence signal
本論文研究這種微流控生化分析系統的激光誘導熒光檢測部分。作為該系統的第一階段研究工作，本課題進行了以下工作： 1非共焦型lif檢測系統的總體結構設計。 -
A novel communication receiver which uses lapped transform ( lt ) incorporating modified median filter ( mmf ) algorithm is designed for narrow - band interference excision. the lt domain mmf algorithm takes full advantages of the direct sequence spread spectrum signal, as well as the characteristics of lt, performing the transform domain filtering twice. the first filtering locates the position of interference and mitigates most of them. the second filtering is performed in a small neighborhood of the located interference. so lt domain mmf algorithm can completely mitigate the interference without distorting the desired signal. simulation results demonstrate the improved ber performance and increased robustness of our receiver
本文採用改進的重疊變換域中值濾波演算法進行變換域抗干擾處理.該演算法既考慮到直接序列擴頻信號的特點，同時又利用重疊變換的特性對變換域系數進行了二次濾波.該演算法節省處理時間，並且不需要有關干擾的先驗知識，系統性能不會隨干擾頻率變化而變化，因而是一種很穩健的處理方法 -
The modulation circuit utilized the vector modulation technology based on fourth - harmonic mixer. the lo frequency is only quarter of carrier frequency. direct high speed qpsk digital modulation of millimeter wave signal can be realized with fairly simplified lo circuit
調制電路採用了以四次諧波混頻器技術為核心的矢量調制技術，利用1 / 4載波頻率作為本振信號，實現了對毫米波信號直接進行高速qpsk數字調制。 -
First of all, three de - correlation methods are introduced for the purpose of deducing the correlation between the direct signal and the reflected one. then one of them is combined with classical music algorithm to do doa estimation
為了減小直達信號與反射信號間的相關性，先介紹了三種去相關的方法，再採用其中一種方法結合經典的music演算法來做doa估計。 -
At this moment, both the direct signal and the reflected one impinge into the array, and make the amplitude and phase of the echo change, which cannot be separated from the direct one, thus cause server errors of elevation ’ s estimation, even the failure of tracking
此時直達信號與反射信號同時進入天線，造成回波幅度與相位的變化，並且這種變化不能從直達信號中分離出來，從而造成目標仰角估計的嚴重誤差，甚至引起跟蹤的失效。 -
The analog outputs of 0. 10 volt or 0. 20 ma allow the direct signal proceeding in sps controlling units
模擬輸出為0 10v或0 20ma ， sps控制單元可以直接對它進行處理。 -
The series rs - 422 485 interface enables direct signal processing in the sps control system and the operation of up to 32 measurement amplifiers in one bus
Sps控制系統通過rs - 422 485系列介面能直接處理信號，並且在同一總線上能進行最高達32個測量放大器的操作。 -
Development of alternating and direct signal generator with many uses
多功能交直流信號源的研製 -
A direct signal is founded in host image in dct domain, and the modulated watermark is regarded as alternating signal, so watermark embedding and extracting are similar with direct and alternating signal synthesizing and separating
在載體dct域的中頻系數中建立近似直流信號，把水印圖像置亂並調製成交流信號，水印的嵌入和檢測過程轉化為直流和交流信號的合成和分離過程。
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