gain receiver 中文意思是什麼
gain receiver
解釋
增益接收器-
The nonlinear filtering for nbi estimate - subtract assumes that the prediction error is dominated by spread spectrum signal and the background noise power is far below spread spectrum chip power, this assumption promises the low error ratio of chip decision but may not be attainable to digitalized dsss receiver in military communication environment, and does not coincide with the principle of dsss communication that decreases bit error ratio ( ber ) depending on spread spectrum gain, not on chip power
在干擾估計抵消濾波中，以往的非線性濾波要求干擾抵消濾波后擴頻信號功率遠大於殘余噪聲功率，進而假設碼片判決的誤碼片率基本為零，這一要求對軍用擴頻通信是不利的，而且也不符合擴頻通信利用擴頻增益降低誤碼率的原則。 -
It controls the receiver ’ s gain, ensuring the receiver has a high gain when a weak signal is received and a low gain when a strong signal is received
它能夠保證接收機在接收弱信號時增益高，而接收強信號時增益低。 -
The receiver used two stages of down conversion. the total gain of receiver is more than 43db
接收支路採用超外差兩次下變頻的方式，實驗表明接收支路的總增益大於43db 。 -
This article according to the acquirement of the system parameters such as : temperature sensitivity 、 angle resolution 、 image forming time etc to design the type and diameter of the antenna ; the receiver type, integral time, rf gain, lpf gain ; the mode of calibration ; the sample frequency and program of the daq ; the scanning time, scan type, etc
本文根據系統溫度靈敏度、角解析度、成像時間等參數要求，對系統天線類型、直徑，接收機類型、積分時間、射頻增益、視頻放大器增益，定標方式，數據採集卡的采樣頻率、編程及驅動裝置的掃描速度、掃描類型等進行了詳細的分析設計。 -
An advanced study of the influences for sar image of receiver ' s gain - and - phase errors is presented in this paper
本文的研究內容以單多通道接收機系統幅相誤差對合成孔徑雷達成像的影響為主。 -
Because the performance of analogue receiver is not good, the gain - and - phase errors of receivers are generated, which badly affected the image of sar
由於接收機模擬器件的非理想性和非穩定性，接收機對回波信號進行幅相調制，產生幅相誤差，影響合成孔徑雷達的成像結果。 -
We propose the joint filterbank precoders and decision feedback equalizers structure at first, by which the dispersive channel is equivallent into parallel independent flat fading subchannels such that the diversity gain of the receiver is increased. then we adopt the discrete - time ( dt ) canonical model to convert the problem of blind signal processing of tv dispersive channels into processing the time - invariant multi - channels model blindly, and discuss the problem of blind equalization and identification of tv dispersive channels based on this new model
第一種是採用濾波器組聯合均衡方法將色散通道等價為一組獨立的平坦衰落子通道，以提高接收機的分集增益；另外一種是提出採用離散正則模型將時變色散通道的盲信號處理轉化為時不變多通道模型的盲信號處理，並針對該模型對時變色散通道的盲均衡與盲辨識方法進行了詳細討論。 -
This method can convert the dispersive channels into independent flat fading subchannels, so that it increase the diversity gain of the receiver and outperform that of the original paper as for the ber performance and maximum mutual information while maintaining all the advantages of it. in chapter 4, the models of the tv dispersive channels are reviewed in signal processing perspective
在第四章中，作者對時變色散通道的信號處理模型進行了研究，提出了離散正則模型的概念，對其進行了詳細的討論，並利用多采樣率理論將該模型推廣到一般的時變色散通道。 -
The parameters of the long - range remote control receiving system are analyzed and simulated thoroughly, such as the signal to noise ratio ( snr ) at the receiver, the delicacy of receiver, auto - gain and band - width of the pass - band. then the important references are provided for the design of long - range remote control receiver
分析了遠程遙控接收系統的參數如接收機輸入信噪比、接收機靈敏度、自動增益和接收機通帶帶寬等，並對遙控接收系統性能指標進行了估算，為遠程遙控接收機的設計提供了一定的理論依據。 -
4. according to the analyses of underwater acoustic channel and long - range remote control receiving system, we designed the long - range remote control receiver, including a low noise prefix - amplifier, a band pass filter and an auto - gain control circuit. finally, the analog part of the receiver is tested and the frequency response of this receiving system is obtained.
結合對水聲通道特性和遠程遙控接收系統的分析，進行了遠程遙控接收機的設計，包括接收機低噪聲前置放大器的設計、帶通濾波器電路的設計和集成以及自動增益控制電路的設計，最後對接收機模擬電路進行了調試。 -
Adaptive modulation can also control quality of service according to transmitted information type and greatly increase capacity of system. the data frames in adaptive modulation communication system must be redesigned. because the sender must tell the receiver the current modulation mode by some bits in the data frame and the receiver must gain the current channel condition from the data frame in order to control its modulation mode and symbol rate
因為發送方須通過數據幀中的某些比特來通知接收方當前的調制方式和符號速率；同樣，接收方也須從數據幀中某個域的比特流來獲得當前的通道條件信息，從而去控制其調制方式及符號速率。 -
By using a new optical input power level detection and signal treatment method to control the gain of the receiver and keep its output level within the required range, a novel feedforward agc optical receiver without radio frequency feedback circuits is realized
我們採用一種入射光功率電平檢測與處理的新方法，對模擬光接收機的增益進行控制，將接收機輸出電平控制在要求的范圍內，實現了一種新型的無射頻反饋電路的自動增益控制光接收機。 -
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