在DAB系統中的頻率同步，載頻同步，參考一下Carrier frequency offset estimation of DAB receiver based on phase reference symbol
上傳時間： 2014-11-23
上傳用戶：songrui
A new PLL topology and a new simplified linear model are presented. The new fractional-N synthesizer presents no reference spurs and lowers the overall phase noise, thanks to the presence of a SampleJHold block. With a new simulation methodology it is possible to perform very accurate simulations, whose results match closely those obtained with the linear PLL model developed.
標簽： new fractional-N synthesizer simplified
上傳時間： 2016-04-14
上傳用戶：hjshhyy
Fast settling-time added to the already conflicting requirements of narrow channel spacing and low phase noise lead to Fractional4 divider techniques for PLL synthesizers. We analyze discrete "beat-note spurious levels from arbitrary modulus divide sequences including those from classic accumulator methods.
標簽： settling-time requirements conflicting already
上傳時間： 2016-04-14
上傳用戶：liansi
In this demo, I use the EM algorithm with a Rauch-Tung-Striebel smoother and an M step, which I ve recently derived, to train a two-layer perceptron, so as to classify medical data (kindly provided by Steve Roberts and Will Penny from EE, Imperial College). The data and simulations are described in: Nando de Freitas, Mahesan Niranjan and Andrew Gee Nonlinear State Space Estimation with Neural Networks and the EM algorithm After downloading the file, type "tar -xf EMdemo.tar" to uncompress it. This creates the directory EMdemo containing the required m files. Go to this directory, load matlab5 and type "EMtremor". The figures will then show you the simulation results, including ROC curves, likelihood plots, decision boundaries with error bars, etc. WARNING: Do make sure that you monitor the log-likelihood and check that it is increasing. Due to numerical errors, it might show glitches for some data sets.
標簽： Rauch-Tung-Striebel algorithm smoother which
上傳時間： 2016-04-15
上傳用戶：zhenyushaw
很經典的空時編碼書籍，英文版。 "Space-Time Coding Theory and Practice" writen by Hamid Jafarkhani Cambridge Pre
上傳時間： 2016-04-19
上傳用戶：onewq
％％％ Demos for PUMA algorithms ％％％ We present four matlab demos for PUMA. demo1, demo2, demo3, and demo4 illustrate PUMA working with different parameters and with four different images. All you need to do is to run each of the demos. Please be sure that all the files are put on an accessible path for matlab. Notice that this code is intended for research purposes only. For further reference see "Phase Unwrapping via Graph Cuts, IEEE Transactions on Image Processing, 2007
標簽： demo PUMA algorithms for
上傳時間： 2016-04-23
上傳用戶：fhzm5658
Creates a Gaussian mixture model with specified architecture.MIX = GMM(DIM, NCENTRES, COVARTYPE) takes the dimension of the space DIM, the number of centres in the mixture model and the type of the mixture model, and returns a data structure MIX.
標簽： architecture COVARTYPE specified Gaussian
上傳時間： 2016-04-28
上傳用戶：dyctj
無線傳感器網絡的主要功能是實現數據發布,在接收到信息查詢時能夠以有效的方式傳輸給查詢者.目前的數據發布方式通?；诤榉簷C制查詢信息,浪費了有限的能源.雖然一些最近的數據發布協議從不同程度上解決了這一問題,但不能保證查詢成功率.基于圓形節點分布網絡模型提出了一種既能減少能源消耗,又能提高成功率的數據發布模式——直徑-弦模式DCS(diameter-chord scheme).該模式利用了每個圓的弦都存在一個直徑與之垂直相交的性質.在此基礎上提出了Two-Phase協議.它在信息查詢時分成兩個工作方式不同的階段進行,在第1段查詢不中時觸發第2段查找.為了減少Two-Phase的延遲,提出了基于優先級和概率轉發兩種解決方法.理論分析和實驗結果都表明,所提出的數據發布協議具有較好的性能.
上傳時間： 2016-04-29
上傳用戶：李夢晗
數字圖像處理基礎理論，英文資料Restoration and Enhancement Space Pictures (blurred, noisy, distorted) Computerized Tomography Coding Transmission – Teleconferencing Storage – Land SAT Images Pattern Recognition Blood Cell Analysis Remote Sensing Robotic Vision Computer Graphics Flight Simulation Auto Body Design Special Effect in Movie
標簽： 數字圖像處理
上傳時間： 2014-06-30
上傳用戶：plsee
This paper presents a low-power asynchronous implementation of the 80C51 microcontroller. It was realized in a 0.5 µ m CMOS process and it shows a power advantage of a factor 4 compared to a recent synchronous implementation in the same technology. The chip is fully bit compatible with the synchronous implementation, and timing compatible for external memory access. The circuit is a compiled VLSI-program, using Tangram as VLSI-programming language and the Tangram tool set to compile the design automatically to a standard-cell netlist. This design approach proves to be powerful enough to describe the microcontroller and derive an efficient implementation. Further, it offers the designer the possibility to explore various alternatives in the design space.
標簽： microcontroller implementation asynchronous low-power
上傳時間： 2016-06-07
上傳用戶：冇尾飛鉈
