載波機 的英文怎麼說
中文拼音 [zǎibōjī]
載波機
英文
carrier equipment-
Schemes of the cpe equalization in dvb - t receiver
系統中子載波頻域均衡接收機設計In this case the information source provides an electrical signal to a transmitter comprising an electrical stage which drives an optical source to give modulation of the lightwave carrier
在這種情況下，信源給發射機提供一個電信號，發射機中的電路驅動光源以實現對光載波的調制。Optical digital loop carrier equipment sdh - base
同步數位階層光數位迴路載波機設備Optical digital loop carrier equipment sdh - based
同步數位階層光數位迴路載波機設備The research on carrier spectrum, modulation schemes and signal codes of plc networks has received much attention, while the mac protocol of plc networks is usually adopted from general - media computer networks
目前國際上注重研究plc網路的載波頻率、調制方式、信號編碼等關鍵技術。而對于plc網路的mac協議，卻通常採用修改的常規計算機網路的mac協議。Optical digital loop carrier equipment sonet - base
同步光纖網路光數位迴路載波機設備Optical digital loop carrier equipment sonet - based
同步光纖網路光數位迴路載波機設備It makes use of resource of the chip, realizes the development of every module, achieves distilling of telegraphese, builds up new frame, calculates the position and provides external interface. in the section of calculating the position, the author combines the two measures of carrier phase position and code position. finally, in the platform of matlab, the author completes the function simulation of main modules
概述了接收機的設計原理;詳細描述了基於ti公司的tms320c6713dsp晶元的系統程序設計中各模塊的實現，利用該晶元的資源，實現各模塊的調度，完成對導航電文的提取，重新組幀，定位解算以及對外介面;在解算部分，把載波相位定位與碼測距定位相結合，利用載波相位對偽距的平滑來提高定位精度;在matlab平臺下進行了各模塊的功能模擬測試，以模擬結果的圖表來分析說明了載波相位平滑偽距的兩種演算法能使定位精度有一定的提高。Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications
本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。To jupiter gps oem board receiver of the low cost, the software was developed according to the original data of satellite, the primitive observation data of receiver and gps theory of technology based on gps pseudo - range observation and carrier phase measurement. 2
針對低成本的jupitergpsoem板接收機，直接根據星歷原始數據和接收機原始觀測數據以及gps定位技術的理論進行了gpsoem板的偽距與載波相位定位軟體的開發。Recently, with the development of gps, many researchers pay attention to the aircraft ' s precise entrance and landing through gps carrier phase measurement. the key technology of aircraft ' s precise entrance and landing is gps carrier phase integer ambiguity resolution on the fly
近年來，隨著gps的發展和完善，利用gps載波相位觀測量實現飛機的精密進場與著陸的研究，開始受到人們的關注，而載波相位整周模糊度的動態確定是其中的關鍵技術。Firstly, the principle of gps kinematical carrier phase measurement positioning is introduced concisely. the mathematical mode of gps carrier phase measurement absolution positioning is discussed and provided. a way to obtain the difference between the true location and the estimated location is proposed
論文首先介紹了gps動態載波相位測量定位原理，討論了動態載波相位測量絕對定位的數學模型，給出了一種求解接收機所在位置改正數的方法。This article describes the plc ’ s using enviroment and the users ’ needs in details, and then tells the differences between the dplc and the troditional plc. it also describes how to decimation and compress the tele - voice, how to deal with the data tunnels, and the multiplex data through the the line which ’ s bandwidth is changeable between 10. 8bps and 28. 8kbps this project uses the programmable vopp chips, the cpld for bus controlling, the fpga and the mcu with high processing ability. all of these ensure the high ability to process the signals and the operations
本文詳細介紹了高壓電力線載波機的使用環境和用戶需求，全數字電力載波機和傳統模擬載波的的差異;按電力調度的需求設計完整的兩路語音、兩路數據的電力線載波通訊機。詳細描述電話語音的采樣，壓縮;數據通道的處理;及在10 . 8kbps 28 . 8kbps可變線路速率通道上的數據復接處理。從實現方法上看，該項目採用專用可編程vopp語音處理晶元， cpld晶元做為總線控制，大規模fpga集成電路，高處理能力的mcu 。Speech - plus single sideband power - line carrier terminals telecontrol signal interface
復用型單邊帶電力線載波機遠動信號介面It has been used in the powerful areas for many years. in these areas, it ’ s a very important communication mode to transmite voice, datas and telecontrol signal by the plcs using lower frequency through the power lines which are high than 10kv
電力線通訊並不是什麼新技術，早在數十年前就已經在電力系統的使用。在中高壓線路上（ 10kv以上）上通過電力線載波機使用較低的頻率（ 40khz 500khz ）傳輸語音、數據和遠動信號，是電力部門一種重要的通訊方式。Piezoelectric ceramic filters for use in electronic equipment. detail specification for piezoelectric ceramic band - pass filter type lt13. 2m for use in carrier. assessment level e
電子設備用壓電陶瓷濾波器詳細規范. lt13 . 2m型載波機用帶通壓電陶瓷濾波器.評定水平e可供認證用The key techniques, application and selected method of power line carrier equipment
電力線載波機的關鍵技術及應用Piezoelectric ceramic filters for use in electronic equipment. detail specification for piezoelectric ceramic band - pass filters type. lt48b lt116b lt68d lt80d lt120d lt124d and lt124b lt172b for use in carrier assessment level e
電子設備用壓電陶瓷濾波器詳細規范. lt48b lt116b lt68d lt80d lt120d lt124d和lt124b lt172b型載波機用帶通壓電陶瓷濾波器.評定水平e可供認證用In the field of traditional power line carrier ( plc ) communications, the modulation - demodulation cells of plc were implemented in means of analog method. the traditional plc systems can ’ t catch up with the market demands for higher communication quality
在傳統的電力線載波通信領域，電力線載波機的調制解調單元都是用模擬器件實現的，這種傳統的載波機已不能完全滿足現有市場對通信質量的要求。It presents particularly the modulation and demodulation ways of the fsk and bpsk. from analyzing, the hardware circuit and software flow scheme of plc based on dsp are designed. the paper researchs and develops a digital modulation and demodulation plc system
通過分析，分模塊設計了基於dsp的數字電力線載波機的硬體電路方案和軟體設計方案，研究開發了一種全數字調制解調的電力線載波機系統。分享友人