The Open Radar Data Acquisition (ORDA) subsystem replaces the current WSR-88D Radar Data Acquisition subsystem with improved receiver and signal processing hardware and with improved user interface, signal processing and diagnostics software. This paper will discuss the input data from the digital receiver, the ORDA signal processing, and the data output from the ORDA hardware. Specifications of the ORDA digital receiver will be presented. The paper outlines the critical radar signal processing flow and provides analysis of new spectrum width computations and clutter filtering schemes used in the ORDA system. Where appropriate, ORDA performance enhancements, data quality improvements and reliability and maintenance improvements will be highlighted.
標簽： Radar Data Acquisition Acquisiti
上傳時間： 2017-08-25
上傳用戶：leixinzhuo
卡耐基.梅隆大學的牛發寫的關于孤立點和數據清洗的文章，全英文，2003年完成，Probabilistic Noise Identification and Data Cleaning，Real world data is never as perfect as we would like it to be and can often suffer from corruptions that may impact interpretations of the data, models created from the data, and decisions made based on the data. One approach to this problem is to identify and remove records that contain corruptions. Unfortunately, if only certain fields in a record have been corrupted then usable, uncorrupted data will be lost. In this paper we present LENS, an approach for identifying corrupted fields and using the remaining noncorrupted fields for subsequent modeling and analysis.
上傳時間： 2017-08-29
上傳用戶：thinode
The target of the assignment is to familiarize the student with MIMO channel modeling. The work is based on L. Schumacher’s MIMO channel model implementation, with added capacity analysis. First the channel model implementation is introduced, and thereafter analysis on MIMO channel with different parameters is done. Finally a short report on the results is written.
標簽： familiarize assignment The the
上傳時間： 2014-01-01
上傳用戶：jjj0202
Features a unique program to estimate the power spectral density. The spectrum containing all significant details is calculated from a time series model. Model type as well as model order are determined automatically from the data, using statistical criteria. Robust estimation algorithms and order selection criteria are used to obtain reliable results. Unlike in FFT analysis, where the experimenter has to set the amount of smoothing of the raw FFT, the right level of detail is assessed using the data only.
標簽： containing Features estimate spectral
上傳時間： 2014-02-09
上傳用戶：daguda
A large body of computer-aided techniques has been developed in recent years to assist in the process of modeling, analyzing, and designing communication systems . These computer-aided techniques fall into two categories: formula-based approaches, where the computer is used to evaluate complex formulas, and simulation-based approaches, where the computer is used to simulate the waveforms or signals that flow through the system. The second approach, which involves “waveform”-level simulation (and often incorporates analytical techniques), is the subject of this book. Since performance evaluation and trade off studies are the central issues in the analysis and design of communication systems, we will focus on the use of simulation for evaluating the performance of analog and digital communication systems with the emphasis on digitalcommunication systems.
標簽： computer-aided techniques developed assist
上傳時間： 2014-01-01
上傳用戶：541657925
頻率合成技術在現代電子技術中具有重要的地位。在通信、雷達和導航等設備中，它可以作為干擾信號發生器；在測試設備中，可作為標準信號源，因此頻率合成器被人們稱為許多電子系統的“心臟”。直接數字頻率合成（DDS——Digital Direct Frequency Synthesis）技術是一種全新的頻率合成方法，是頻率合成技術的一次革命。本文主要分析了DDS的基本原理及其輸出頻譜特點，并采用VHDL語言在FPGA上實現。對于DDS的輸出頻譜，一個較大的缺點是：輸出雜散較大。針對這一缺點本文使用了兩個方法加以解決。首先是壓縮ROM查找表，
上傳時間： 2017-09-28
上傳用戶：大三三
Within this book the fundamental concepts associated with the topic of power electronic control are covered alongside the latest equipment and devices, new application areas and associated computer-assisted methods. *A practical guide to the control of reactive power systems *Ideal for postgraduate and professional courses *Covers the latest equipment and computer-aided analysis
標簽： power electronic electrical system
上傳時間： 2015-02-20
上傳用戶：12345654321
剛性系統數值積分算法BDF，并給出了高效的計算方法，MATLAB中ODE15s算法的考慮文獻。
標簽： BDF 方法
上傳時間： 2015-03-20
上傳用戶：2576206879
ica 核獨立主元分析（kernel independent component analysis)軟件工具包
標簽： kernel ica
上傳時間： 2015-03-24
上傳用戶：dyw0430
Multivariate Analysis
上傳時間： 2015-04-14
上傳用戶：4gezifu
