題目：加密軟件 要求：（1）輸入任意一段明文M，以及密鑰K （2）根據一下公式將其轉換為密文C。 Ci = mi + K ,其中i = 0,1,……n-1 , K 為密鑰； （3）具有輸入輸出界面。
上傳時間： 2013-11-25
上傳用戶：shawvi
Introduction jSMPP is a java implementation (SMPP API) of the SMPP protocol (currently supports SMPP v3.4). It provides interfaces to communicate with a Message Center or an ESME (External Short Message Entity) and is able to handle traffic of 3000-5000 messages per second. jSMPP is not a high-level library. People looking for a quick way to get started with SMPP may be better of using an abstraction layer such as the Apache Camel SMPP component: http://camel.apache.org/smpp.html Travis-CI status: History The project started on Google Code: http://code.google.com/p/jsmpp/ It was maintained by uudashr on Github until 2013. It is now a community project maintained at http://jsmpp.org Release procedure mvn deploy -DperformRelease=true -Durl=https://oss.sonatype.org/service/local/staging/deploy/maven2/ -DrepositoryId=sonatype-nexus-staging -Dgpg.passphrase=<yourpassphrase> log in here: https://oss.sonatype.org click the 'Staging Repositories' link select the repository and click close select the repository and click release License Copyright (C) 2007-2013, Nuruddin Ashr uudashr@gmail.com Copyright (C) 2012-2013, Denis Kostousov denis.kostousov@gmail.com Copyright (C) 2014, Daniel Pocock http://danielpocock.com Copyright (C) 2016, Pim Moerenhout pim.moerenhout@gmail.com This project is licensed under the Apache Software License 2.0.
上傳時間： 2019-01-25
上傳用戶：dragon_longer
Emerging technologies such as WiFi and WiMAX are profoundly changing the landscape of wireless broadband. As we evolve into future generation wireless networks, a primary challenge is the support of high data rate, integrated multi- media type traffic over a unified platform. Due to its inherent advantages in high-speed communication, orthogonal frequency division multiplexing (OFDM) has become the modem of choice for a number of high profile wireless systems (e.g., DVB-T, WiFi, WiMAX, Ultra-wideband).
標簽： Broadband Wireless Networks
上傳時間： 2020-05-26
上傳用戶：shancjb
Following chapter introduces the mobile communication, gives a short history of wireless communication evolution, and highlights some application scenarios predestined for the use of mobile devices. Cellular and wireless based systems related to different generations of mobile communication, including GSM, IS-95, PHS, AMPS, D-AMPS, cdma2000 and WCDMA are also described by this Chapter. Much attention in this chapter is given to express the wireless based networks, such as Wi-Fi and WiBro/WiMax, and wireless broadcasting systems, including DMB, DVB-H, and ISDB-T. We conclude the chapter with the future vision of mobile communication evolution
標簽： Technologies Enhanced Access Radio
上傳時間： 2020-05-27
上傳用戶：shancjb
MIMO-OFDM is a key technology for next-generation cellular communications (3GPP-LTE, Mobile WiMAX, IMT-Advanced) as well as wireless LAN (IEEE 802.11a, IEEE 802.11n), wireless PAN (MB-OFDM), and broadcasting (DAB, DVB, DMB). This book provides a comprehensive introduction to the basic theory and practice of wireless channel modeling, OFDM, and MIMO, with MATLAB ? programs to simulate the underlying techniques on MIMO-OFDMsystems.Thisbookisprimarilydesignedforengineersandresearcherswhoare interested in learning various MIMO-OFDM techniques and applying them to wireless communications.
標簽： Communications MIMO-OFDM Wireless MATLAB with
上傳時間： 2020-05-28
上傳用戶：shancjb
Emerging technologies such as WiFi and WiMAX are profoundly changing the landscape of wireless broadband. As we evolve into future generation wireless networks, a primary challenge is the support of high data rate, integrated multi- media type traffic over a unified platform. Due to its inherent advantages in high-speed communication, orthogonal frequency division multiplexing (OFDM) has become the modem of choice for a number of high profile wireless systems (e.g., DVB-T, WiFi, WiMAX, Ultra-wideband).
標簽： OFDM-Based Broadband Networks Wireless
上傳時間： 2020-05-31
上傳用戶：shancjb
Wireless communications has become a field of enormous scientific and economic interest. Recent success stories include 2G and 3G cellular voice and data services (e.g., GSM and UMTS), wireless local area networks (WiFi/IEEE 802.11x), wireless broadband access (WiMAX/IEEE 802.16x), and digital broadcast systems (DVB, DAB, DRM). On the physical layer side, traditional designs typically assume that the radio channel remains constant for the duration of a data block. However, researchers and system designers are increasingly shifting their attention to channels that may vary within a block. In addition to time dispersion caused by multipath propagation, these rapidly time-varying channels feature frequency dispersion resulting from the Doppler effect. They are, thus, often referred to as being “doubly dispersive.”
標簽： Time-Varying Channels
上傳時間： 2020-06-01
上傳用戶：shancjb
THIS PUBLICATION IS COPYRIGHT PROTECTEDCopyright ? 2014 IEC, Geneva, SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any formor by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing fromeither IEC or IEC's member National Committee in the country of the requester. If you have any questions about IECcopyright or have an enquiry about obtaining additional rights to this publication, please contact the address below oryour local IEC member National Committee for further information.Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduiteni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopieet les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez desquestions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisezles coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
標簽： iec標準
上傳時間： 2021-10-21
上傳用戶：kent
隨著科學技術的發展和現代戰爭的需要，數據融合作為一門新興交叉學科，在近年來得到了廣泛關注和快速發展，而關于雷達情報處理的研究和應用也日益受到重視。現代戰爭中，指揮、控制通信和情報系統面臨著嚴峻的挑戰。在多雷達情報處理系統中，采用數據融合技術，提供更加實時、準確的情報是現代戰爭的迫切需求。論文正是圍繞這一需求展開的，研究了雷達情報數據融合系統的誤差校正和航跡關聯問論文較為系統地介紹了數據融合的概念、研究意義、國內外發展狀況及其應用，并討論了數據融合的模型、結構及關鍵技術論文針對多雷達情報處理系統中的系統誤差問題，研究了四種誤差校正方法。文研究了密集目標環境中的航跡關聯問題，對多傳感器數據關聯的方法進行了分類，并針對多雷達情報處理系統這個分布式系統，研究了分布式數據關聯方法。運用0-1整數規劃法建立了密集目標環境的規劃模型函數并求解應用在多雷達數據融合軟件中，使航跡關聯達到了極好的效果，為開發多雷達數據融合軟件提供了技術支持。關鍵詞：雷達情報，數據融合，數據關聯，誤差校正，航跡關聯，0-1整數規劃現代戰爭中，新型作戰飛機機動性能強，具有隱身特性，加上電子對抗的戰場環境，傳統雷達情報處理系統已應付不了多目標，高密度的空情要求。為了適應新軍事變革要求，在未來信息化戰爭中雷達能夠給出準確的信息情報，雷達情報處理系統在改善硬件條件的同時，開發運用數據融合新技術，從根本上改善雷達情報質量已然成為當務之急數據融合一詞最早出現在七十年代末期，是從軍事CI系統中提出的，它與信號處理、計算機技術、概率統計、圖像處理和人工智能學科密切相關，是一門新興發展起來的交叉學科。
上傳時間： 2022-03-18
上傳用戶：wangshoupeng199
【例3.1]4位全加器module adder 4（cout，sum i na，i nb，cin）；output[3：0]sum output cout；input[3：0]i na，i nb；input cin；assign（cout，suml=i na +i nb+ci n；endmodule【例3.2]4位計數器module count 4（out，reset，clk）；output[3：0]out；input reset，cl k；regl 3：01 out；always@posedge clk）
標簽： verilog
上傳時間： 2022-06-16
上傳用戶：canderile
