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javaNIO
- 一系列缓冲区类支撑起了 Java 2 平台标准版的新 I/O(NIO)包。这些类的数据容器形成了其它 NIO 操作(如套接字通道上的非阻塞读取)的基础。在本月的 Merlin 的魔力中,常驻 Java 编程专家 John Zukowski 展示了如何操作那些数据缓冲区来执行如读/写原语这样的任务以及如何使用内存映射文件。在以后的文章里,他将把这里所提到的概念扩展到套接字通道的使用。 Java 2 平台标准版(Java 2 Platform Standard Edition,J2SE)1.4 对
CMMB_standard.rar
- 广电总局CMMB手机电视标准: 1.广播信道帧结构、信道编码和调制 2.信道复用 ,SARFT CMMB mobile TV standard: 1. Broadcast channel frame structure, channel coding and modulation 2. Multiplexed channel
mimo-ofdm_Phd_thesis.rar
- MIMO-OFDM 国外博士论文 1.Transmitter strategies for closed-loop MIMO-OFDM,2.Spatial processing, power control, and channel allocation for OFDM wireless communications....,MIMO-OFDM foreign doctoral dissertation 1.Transmitter strategies for closed-loop MIMO
PT2323PT2322
- 簡介 PT2323 是特別為6CH 家庭劇院音響系統所設計的音響用輸入選擇器,並且內建2CH~6CH 轉換 器,可以直接將傳統立體聲2CH 信號轉換成為模擬6CH 信號,使用I2C 控制介面。單電源9V 供 應電壓,低成本及極佳的性能表現(THD<0.005 Typ),適合任何高性能的6CH 音響系統之應用。 特色 l 供應電源:9V l 提供4 組立體聲及一組6CH 輸入端 l 內建2CH~6CH 轉換器和副低頻低通濾波器 l 最大輸入電壓可達3.75Vr
2.1AmplifierCircuit
- 2.1声道功放电路,电路简洁,音质好,便于兴趣爱好者自制-2.1 channel amplifier circuit, circuit simplicity, good sound quality, easy to enthusiasts interested in self-
mmc2r11a
- SCSI Multimedia Commands 鈥?2 (MMC-2) NCITS 333 T10/1228-D 4.1.1. CD address reporting formats (MSF bit) Several CD commands can report addresses either in logical block address or in MSF format (see Table 1). The READ HEADER, READ SUB-CHANNEL
InformationTheoryAndCodingTechniques
- 信息论是由通信技术、概率论、随机过程和数理统计等相结合逐步发展而形成的一门新兴科学。其奠基人是美国数学家香农,他的《通信的数学原理》奠定了信息论的基础。 这是信息论与编码技术的教学课件。压缩包内含有6个ppt文件,每个ppt自成一章:1绪论、2信源及其熵、3信道及其容量、4信息率失真函数、5信源编码、6信道编码。是初学信息论的最好材料。-Information communication technology is, probability theory and mathematical s
1602
- 1602液晶的实用的详细程序。程序仅供参考 -Pin VREF requires a voltage of 1.25 V to 2.5 V, with gain scaling between 40 dB/V and 20 dB/V, respectively. Voltage VGN controls the gain its nominal operating range is from 0.25 V to 2.65 V for 20 dB/V gain scaling,
Multi_function_PowerLine_Carrier_Module
- 多功能电力载波模块采用了高度集成的电路设计,整个模块取消了外围电力线耦合电路和调整电路,具体应用时简单到只需接入外部供电电源即可,数据的发送和接收也只需遵循常用的单片机串口协议进行操作即可。 适用场合,例如: 1.宾馆、酒店、商场、学校、小区灯光的集中控制和管理 2.无人值班的电气设备的远程控制和管理 3.工厂、矿井的电气设备的远程控制和监控 4.远程温度、湿度的测量和监控 5.远程抄表系统 6.简单的基于电力线的内部呼叫系统 7.智能家居
54379
- We investigate the case of independent Rayleigh faded paths between antenna elements and find that with high probability extraordinary capacity is available. Compared to the baseline n = 1 case, which by Shannon’s classical formula scales as one
DurraniThesis
- a brief introduction to the concept and application of smart antennas for Code Division Multiple Access (CDMA) systems is presented. Following some introductory remarks in Section 1.1, the basic definition and classification of smart antennas is
BAS
- These cooperations are facilitated by dynamically and opportunistically assigning one of the secondary users as a relay to assist the other one, which results in more efficient spectrum hole detection. Also, we investigate the impact of erroneous
FundamentalsWireless
- Fundamentals of Wireless Communication This book is a web of interlocking concepts. The concepts can be structured roughly into three levels: 1. channel characteristics and modeling 2. communication concepts and techniques 3. applicatio
advancedwirelesscommunication
- MIT教授来校讲学,先进无线通信课件,包括1.Channel Model;2.Performance analysis;3.Low_complexity_diversity_schemes;4.space_and_time_diversity;5.Diversity-Multiplexing Tradeoff.-advanced wireless communication
3.5GHz--channel-measurements
- 在3.49-3.51GHZ频段内的典型中国城市环境下,地面信号衰落仍服从经典的指数对数分布。在中度误差(σx =10.291)下,路损指数在3.1-3.7之间。半径2公里的小区内,RMS时延在3-4微秒之间;典型的办公室环境中,存在直达径时RMS时延小于0.1微秒。在城市环境中,多径现象很明显,主要由高层建筑物引起,并以簇的方式存在。在城市中低速移动条件下(接收机移动速度小于100 Km/h)某一强径的生存时间通常超过10分钟,但相对到达时间会发生滑动。单一小区内的传播环境具有一定相关性,如果存
en300421-v1-1-2.pdf
- Digital Video Broadcasting (DVB) Framing structure, channel coding and modulation for 11/12 GHz satellite services
twouser_2011-1
- In the first protocol (Protocol 1), a node relays the signal received from the primary to the other nodes only if the signal energy is sufficiently large. In the second protocol (Protocol 2), given the knowledge of channel gains to the other
TW68xx-SDK-v1.2.1.0
- TW68XX 8路视频8路音频 PCI-EX1接口 的SDK-TW68XX 8 video 8-channel audio interface PCI-EX1 SDK
PCMcodedecode_matlab
- 产生一正态分布序列 经过pcm编码、PCM解码、计算量化信噪比、设置信道误码率 -Generating a normal sequence after pcm encoding, PCM decoding, computing quantization noise ratio, set the channel error rate x = randn (1,1000) generating a normal sequence xf = fft (x, 256) 1024 da
Campus-Card-Management-System
- 有管理员、学生的登陆界面,学生和管理员都能登陆该系统是想不同的操作功能。 1. 管理员:可以创建新的学生账号(即开办新卡),修改学生的信息,为校园卡进行充值,挂失补办等各项功能。 2. 学生通道:可以登陆进行消费,查询消费信息,人员信息等。 -Administrator, the student s login screen, students, and administrators can log in different operating system is to funct