rate receiver 中文意思是什麼
rate receiver
解釋
速率接收機-
This thesis addresses the problem of minimizing the total transmit power subject to individual rate constraints in broadcast channel with multiple antennas at the transmitter and one antenna at each receiver
本文解決了多輸入多輸出（ mimo ）廣播通道中滿足用戶速率要求的最小傳輸能量問題。 -
By using ofdm technology, we can redu ce the baud rate with a high frequency spectrum utility factor. another advantage of this technology is that the transmission can combat the intersymbol interference ( isi ) at the receiver without complex adaptive equalizer
Ofdm既有較高的頻譜利用率，也有效地降低了碼速率，在不使用復雜的通道均衡技術的條件下仍然可以較好地克服接收時由多徑效應帶來的碼間串擾（ isi ） 。 -
Rate - distortion analysis and rate control play a key role in video coding and communication systems by providing the rate - distortion optimized compression performance, assuring the successful network transmission of the coded video data, and achieving the best visual quality at the receiver
為了取得最優化的壓縮效率，確保編碼數據在通道成功傳輸，並在接收端獲得最佳的視頻質量，率失真優化和碼率控制技術具有重要的地位。 -
And the working principle and circuit makeup of the optical transceiver are analyzed in detail. secondly, according to the actual requirements, optical transmitter and optical receiver were designed into a small module to carry out low - rate optical transceiver. finally, fundamental parameters of the optical transceiver are tested under existing conditions
本文在簡述光纖通信原理的基礎上，從最基礎的光有源器件工作原理、特性入手，重點闡述了光收發一體模塊電路結構以及工作原理，在此基礎上根據實際情況設計了光發送、接收電路，實現了低速率光收發一體模塊，並在現有條件下對該模塊進行了初步測試。 -
Transmitter, receiver and ground communication equipment used in domestic satellite communication earth stations - technical requirements. part 4 : intermediate data rate transmission equipment
國內衛星通信地球站發射接收和地面通信設備技術要求第四部分中速數據傳輸設備 -
Rbtcp is rate based, uses only end - to - end mechanism, performs rate control at the receiver, and uses inter - packet delays as the primary metric for rate control
Rbtcp是基於速率的，運用端到端的機制，以分組間的延遲作為主要的監控標準在接受端執行速率控制。 -
It is merely necessary to select a baud - rate and possibly other options ( number of stop bits, parity, etc. ) and load ( or read from ) the serial transmitter ( receiver ) buffer
用戶只需要選擇少數幾個選項，例如波特率、停止位、奇偶校驗方式，然後向串列發送（或者接收）緩沖區發送（或者讀取）數據。 -
Design of digital spread spectrum receiver ofa high dynamic and high pn code rate
高動態高碼速率全數字化解擴接收機的設計 -
The viterbi decoder with hard decision designed by the paper, is aimed at ( 3, 1, 9 ) convolutional coding. the data rate is 9. 6kbps. the data rate received by the rake receiver is spreaded by 127 - bit spread sequences, added pilot signals and modulated by qpsk
該課題所設計viterbi譯碼是針對（ 3 ， 1 ， 9 ）卷積碼的硬判決譯碼，數據速率為9 . 6kbps ; rake接收機所接收的數據是擴頻因子為127 、加入導頻且經qpsk調制的擴頻信號，使用verilg硬體描述語言在xilinx公司的ise環境下在用現場可編程門陣列（ fpga ）來實現viterbi譯碼器和rake接=收機的功能。 -
The paper introduces the principle of transient rayleigh wave exploration and the calculating process of f - k region analysis, according to experimental data analyzes the influences of the parameters on the calculation of phase speed of rayleigh wave and the various factors affecting transient state rayleigh wave exploration, at last, gives some advices on how to choose the best sampling rate, group interval, offset, vibrating source and receiver
介紹了瑞雷波勘探的原理和f - k域分析法的計算過程，分析了各參數對瑞雷波相速度計算的影響，通過實驗數據分析了影響瑞雷波勘探的主要因素，就如何選擇最佳采樣率、道間距、偏移距、震源以及檢波器等提出了幾點建議。 -
Digital down - converter ( ddc ) is one of the key technologies used by sdr receiver. the ddc module is a data processing part, following the ad sampler. the main function of ddc is extracting narrow - band data from broad - band data which is digitalized by ad sampler, down - converting these data to base - band, and decreasing data rate as well
Ddc數字下變頻器技術作為軟體無線電中的核心技術，是緊跟在ad采樣后的一個處理模塊，他的主要功能是從輸入的寬帶高速數字信號中提取所需的窄帶信號，將其下變頻為數字零中頻，並降低數據的速率。 -
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。 -
Second, this paper design the simulation scheme of bicm for comparing the performance over fading channel and awgn channel that combine 2 / 3 rate, 4 states punctured convolutional code with 8psk modulation, matching block interleave or random interleave, transform through rayleigh channel or awgn channel and use the way that combine coherent demodulation with viterbi decoding in receiver. design the scheme of bicm _ id that use the iterative decoding technique and the scheme of tcm for compare
為了驗證bicm和bicm _ id在衰落通道和加性高斯白噪聲通道（ awgn ）下的性能，設計了一個2 / 3碼率， 4狀態的鑿孔卷積碼經過塊交織或隨機交織，與8psk調制相結合，在rayleigh通道下或awgn通道下傳輸，接收端採用相干解調與維特比譯碼相結合的bicm方案，在接收端引入迭代反饋譯碼的bicm _ id方案，以及與之相比較的tcm方案。 -
In recent years, radio technology has developed very quickly in our country. however, a radio monitoring receiver with broad frequency scale ( 20 - 3000 mhz ), high scanning rate ( above 1ghz / s ) and whole spectrum real - time display has not developed. some imported monitoring receivers with broad frequency scale can only scan slowly and could n ' t meet actual needs. not only these imported receivers " price is high but also those developed countries usually limit the quantities of imported receivers and related technology is not open
近年來我國無線電技術水平已經有了很大發展和進步，但對于頻率覆蓋范圍寬（ 20 - 3000mhz ） 、掃描速度快（ 1ghz / s以上）並具備快速全頻段實時頻譜顯示和記錄的無線電監測接收設備，目前我國尚不能生產，國內現在已經進口的寬頻段監測接收機一般也只能進行低速掃描，無法滿足實際的需要。 -
The purpose of this article is to introduce the realization of medium frequency receive for bpsk pulse compress radar. and it includes the realization of constant false alarm rate ( cfar ) process. the main content of this article includes : ( 1 ) the introduction of radar medium frequency receiver ; ( 2 ) the introduction of medium frequency receiver theory ; ( 3 ) the simulation for medium frequency receive of bpsk pulse compress radar ; ( 4 ) the hardware realization for medium frequency receive of bpsk pulse compress radar
本文的主要工作包括： （ 1 ）介紹雷達數字接收機的概念； （ 2 ）介紹中頻數字接收理論； （ 3 ）介紹二相編碼脈壓雷達中頻接收的方案設計和模擬驗證； （ 4 ）通過硬體描述語言ahdl ，完成中頻數字接收和脈壓處理演算法在fpga上的實現； （ 5 ）完成雷達中頻數字接收機信號處理板原理設計，並同課題組成員一起完成硬體調試，並給出相應的測試結果。 -
We can see that the kalman blind adaptive algorithm discussed in this thesis has the advantages of quicker convergence and better signal - to - noise rate. and the joint use of rake receiver and mud has practical value too
本文中討論的kalman盲自適應演算法具有收斂速度快信干比高的優點， rake分集和多用戶檢測相結合的技術也很有實用價值。 -
This paper discusses key technology in the digital intermediate frequency receiver with wide band based on software radio, including down - converter on condition of band - pass - sampling, digital down - converter, multi - rate digital signal processing, band - pass signal decimating, and achieves software system simulation based on under - sampling
摘要分析了基於軟體無線電的寬帶數字中頻接收機中的關鍵技術帶通采樣下變頻技術、數字下變頻技術、多速率處理技術，並實現了欠采樣技術條件的軟體系統模擬。 -
A frequency guiding digital receiver is given. the key technology, fast frequency estimation and high effectual data rate conversion, is introduced briefly
給出了一種頻率引導式的數字接收機方案，簡要介紹這種接收機的關鍵技術? ?快速、高精度頻率估計以及高效的數據率轉換。 -
In the end, implementation of if digital receiver unit of tdrss user transponder by the method of fpga and dsp cooperation design are completed successfully, which leads to good ds - ss if receiver design for the signal whose carrier frequency is 3mhz, pseudorandom code rate is 3mchips / s, data rate is 10kbps, frequency offset is no more 1khz, and modulation mode is bpsk
最後，完成了該中頻數字接收機設計，並對其進行調試和測試。測試結果表明，該接收機能對載頻為3mhz ，頻偏不大於1khz ，偽隨機碼速率為3mchips / s ，信息碼速率為10kbps ， bpsk調制的直接序列擴頻中頻信號進行接收，基本滿足設計要求。 -
( 1 ). here we build the system space geometry model : the transmitter and receiver fly on different platforms and at different height, two flight paths are unparallel. based on the chirp signal and the taylor series, we analyze the range history and synthetic aperture time, then demonstrate the equation of the azimuth resolution about air - born bistatic spotlight synthetic aperture radar, meanwhile we obtain the equations of doppler bandwidth and doppler frequency modulate rate
本文以機載聚束式合成孔徑雷達成像作為研究背景，主要完成了以下幾方面的工作: （ 1 ）建立了一種機載雙站聚束式sar空間幾何數學模型，對方位分辨力進行了理論分析，進行了數值分析與模擬，討論了不同條件對雙站聚束模式sar系統分辨力的影響。
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