傻瓜SAS可以帮助企业提高数据传输，分析，报告，数据预测，统计分析等。它提供统计和数据分析工具来帮助你处理各种资料，业务，财务等。
Unless you’re a hermit, chances are good that your life is touched by SAS (pronounced “sass”) almost every day. Have you ever received an offer for a credit card in the mail? The bank might have used SAS to select you for the particular offer you received. Remember a recent news article that cited demographic trends in the United States? The Census Bureau uses SAS to crunch its numbers. Were you tempted to buy that new gadget in a big-name retail store? The corporate office might have used SAS to calculate the best price to set for that specific item on that specific week. The rate you pay for life insurance, the analysis behind pharmaceutical drug trials, the quality of parts used to assemble your automobile — all these are determined by people who use SAS. You don’t see SAS directly from day to day — but, like gravity, it’s an invisible force that affects your life. This book offers a prolonged glimpse into the multifaceted world of SAS software. Read on to discover how people use SA (2010-12-06, Others, 7983KB, 下载3次)
全国高校社团会长年会暨新青年领袖论坛”是一个以全国高校社团会长主席以及优秀大学生为主，众多各行业的社会精英支持为辅，现代精英与未来精英的高端对话平台。邀请各个领域的佼佼者，用他们的不平凡的事业与人生经历，用他们对社会的“责任和感恩”情怀来和年轻人展开分享、对话、交流。自2005年第一届年会举办以来，已经成功举办了五届，共有几万名大学生直接参与，影响面达上百万。有500多位政府领导、企业家、学者、明星等社会各界名人出席，如复星集团董事长郭广昌、Google中国区总裁李开复、微软全球资深副总裁张亚勤、IDG亚洲区总裁熊晓鸽、著名影星李连杰、新东方教育集团董事长俞敏洪、体坛尖兵叶乔波、著名舞蹈家陈爱莲、零点集团董事长袁岳、疯狂英语创始人李阳、恒源祥集团董事长刘瑞旗、金山公司董事长雷军等。
The national college society President annual meeting and new youth leader BBS "is a national college society President chairman and excellent graduates is given priority to, numerous industries of social elite support is complementary, modern elite and future elite of high-end dialogue platform. Invite all areas of outstanding person, with their extraordinary career and life experience, with their to society" responsibility and Thanksgiving "feelings to unfold and young people share, dialogue, communication. Since the 2005 first annual meeting held since, has successfully hosted the fifth, there are tens of thousands of college students, the extent of directly involved in more than 500 million. The government officials, entrepreneurs, scholars, stars and other social celebrities attend, such as fosun group chairman guo, Google China chief executive kai-fu lee, the global-known vice President of Microsoft Asia, IDG according XiongXiaoGe President, a famous film star jet li, new Orienta (2010-11-20, Others, 941KB, 下载7次)
《数字通信》(第4版)是数字通信领域的一本经典教材,通过对概率论及随机过程的复习,详细介绍了数字和模拟信源编码、数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号间干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。
" Digital communication" (4th edition) is a digital communications of a classic textbook in the field, through the review process, the probability of randomly addressed, details of the digital and analog source coding, digital modulation signal and the narrowband signal and system characteristics, additive white Gaussian noise in digital communication modulation and the best modulation and detection methods, based on maximum likelihood criterion of carrier phase estimation and time synchronization method, different channel model of channel capacity and random coding, band-limited channel signal design by ISI worse signal demodulation and detection, adaptive channel equalization, multi-channel and multi-carrier modulation, spread spectrum signals and systems, fading channel digital communications. (2010-05-12, Others, 17177KB, 下载218次)
博弈论与信息经济学不仅仅能在学术领域中光彩夺目，在其它领域如军事、管理、体育、政治、公关、个人生活中同样能得到充分利用，甚至在生物学中都可以觅其踪迹。在普通的企业管理中，经营者要熟练地掌握管理之术，必须能够自动自发并自觉地运用博弈论与信息经济学。在日常生活中，人们可以博弈论与信息经济学得思想方法赖分析甚而解决实际问题。
Game Theory and Information Economics is not only in academic fields in the dazzling, in other areas, such as the military, management, sports, politics, public relations, personal life, the same can be fully utilized, even in biology can seek its tracks. In the general business management, the managers who are skilled and competent in the management of patients must be able to self-motivated and conscious application of game theory and information economics. In everyday life, people can game theory and information economics have to rely on analysis of even thinking to solve practical problems. (2010-03-23, Others, 546KB, 下载5次)
本书是数字通信领域的一本经典教材,通过对概率论及随机过程的复习,详细介绍了数字和模拟信源编码、数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号间干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。本书适合与通信工程相关专业的高年级本科生、研究生及工程技术人员阅读。
作者介绍
约翰●G 普罗基斯（JOhn G.Proakis）自1969年9月以来任职于美国东北大学。在1982-1997年期间，他历任电气与计算机工程系系主任、研究生院副院长、院长；同时也在美国通用电话电子公司（GTE）实验室和麻省理工学院（MIT）林肯实验室任职。
普罗基斯博士在Cincinnati大学获得学士学位（BSEE），在MIT获得硕士学位（MSEE）在哈佛大学获得工程领域博士学位。他的专业方向和研究兴趣主要是数字通信和数字信号处理，在这些领域里他已发表了许多论文并出版了多本著作。
This book is the field of digital communication 1 classical materials, through the random process of probability deals with the review, detailing the digital and analog source coding, digital modulation signal and narrow-band signal and system characteristics, additive white Gaussian noise digital communications modulation and best modulation and detection methods, based on the criteria of maximum likelihood estimates of carrier phase and timing synchronization method, different channel models and channel capacity of random coding, band-limited signal channel design, by the deterioration of inter-symbol interference signal demodulation and detection, adaptive channel equalization, multi-channel and multi-carrier modulation, spread spectrum signals and systems, the decline of the digital communication channel. Book for engineering and communications professional senior undergraduates, graduate students and engineers and technicians to read.
Author
● JOhn G. Proakis since September 1 (2009-07-13, Others, 17941KB, 下载119次)
在实际通信信道上传输数字信号时，由于信道传输特性不理想及加性噪声的
影响，接收端所收到的数字信号不可避免地会发生错误。为了在一定的信噪比范
围内获得较好的误码率指标，首先要合理设计基带信号，选择调制解调方式，采
用时域、频域均衡等技术使误码率尽可能降低
In the actual communication channel to transmit digital signals, the channel transmission characteristics as a result of unsatisfactory and additive noise impact of the receiving end of the digital signal received will inevitably error. To a certain degree of signal to noise ratio in the range of bit error rate better indicators, we should first rational design of base-band signal, select the modem mode, using time-domain, frequency domain equalization, such as technology enables to minimize error rate (2009-01-05, Others, 210KB, 下载11次)
BISS0001是一款具有较高性能的传感信号处理集成电路，它配以热释电红外传感器和少量外接元器件构成被动式的热释电红外开关。它能自动快速开启各类白炽灯、荧光灯、蜂鸣器、自动门、电风扇、烘干机和自动洗手池等装置，特别适用于企业、宾馆、商场、库房及家庭的过道、走廊等敏感区域，或用于安全区域的自动灯光、照明和报警系统。
BISS0001 is a high performance sensor signal processing integrated circuits, it is with pyroelectric infrared sensor and a small amount of external components constitute a passive pyroelectric infrared switch. It can automatically and quickly to open all types of incandescent, fluorescent lamps, buzzers, automatic door, electric fans, dryers and automatic devices such as hand-washing pool, especially suitable for enterprises, hotels, shopping malls, the Treasury and the family aisle, corridors and other sensitive region, or for the security zone automatic lighting, lighting and alarm system. (2008-05-29, Others, 129KB, 下载223次)
本书是数学通信领域的一本经典教材，通过对概率论及随机过程的复习，详细介绍了数字和模拟信源编码，数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。本书适合通信工程相关专业的高年级本科生、研究生及工程技术人员阅读。 (2007-10-30, Others, 17350KB, 下载422次)
http://www.pudn.com/Download/item/id/352572.html
改进的快速SPIHT 算法.针对原算法的不足引入了“最小阈值”和“最小输出位”,同时改变了原算法的扫描顺序,降低了算法的复杂程度,并使其更有利于并行优化处理。实验证明,改进后的算法减少了编解码过程中的存储容量和时间消耗,而重建图像的峰值信噪比和人眼视觉效果与原算法相当。
improved fast SPIHT. Against the original algorithm of the introduction of the "minimum threshold" and "the smallest output ", and also changed the original algorithm scanning sequence, reducing the complexity of the algorithm, and make it more conducive to optimizing the parallel processing. Experiments show that the improved algorithm to reduce the codec in the process of storage capacity and time consumption, and reconstruction in PSNR and the human visual effects and the original algorithm. (2007-04-11, Others, 199KB, 下载133次)