在包 hugeinteger 中创建功能类 HugeInteger，该类用来存放和操作一个不超过 40 位的大整数。 (1) 定义一个构造函数，用来对大整数进行初始化。参数为一个字符串。 (2) 定义 input 成员函数，实现大整数的重新赋值。参数为一个字符串，无返回 值。 (3) 定义 output 成员函数，将大整数输出到屏幕上。无参数无返回值。 (4) 定义 add 成员函数，实现两个大整数的加法。参数为一个 HugeInteger 对 象，无返回值，例如： HugeInteger A = new HugeInteger("12345"); HugeInteger B = new HugeInteger("1234"); A.add(B); 此时，A 为 13579，B 为 1234。 (5) 定义 sub 成员函数，实现两个大整数的减法。参数和返回值同 add 函数。 (6) 定义若干大整数关系运算的成员函数，包括 isEqualTo（等于，=）、 isNotEqualTo（不等于，≠）、isGreaterThan（大于，>）、isLessThan（小 于，<）、isGreaterThanOrEqualTo（大于等于，≥）和 isLessThanOrEqualTo （小于等于，≤）。这些函数的参数为一个 HugeInteger 对象，返回值为一个 布尔类型，表示关系运算的结果，例如： HugeInteger A = new HugeInteger("12345"); HugeInteger B = new HugeInteger("1234"); 那么此时 A.isGreaterThan(B)的结果应当为 True，表示 12345>1234。
上传时间： 2019-06-01
上传用户：idealist
Output Feedback Active Suspension Control With Higher Order Terminal Sliding Mode
标签： 滑模
上传时间： 2019-07-24
上传用户：sjjy0220
AT89C51控制数码管显示0到9循环，带.hex文件，包含仿真图。
标签： 89C C51 AT 89 51 控制 循环 数码管显示
上传时间： 2019-10-20
上传用户：917882068
使用汇编语言或C语言要使用编译器，以便把写好的程序编译为机器码，才能把HEX可执行文件写入单片机内。KEIL uVISION是众多单片机应用开发软件中最优秀的软件之一，它支持众多不同公司的MCS51架构的芯片，甚至ARM，它集编辑，编译，仿真等于一体，它的界面和常用的微软VC++的界面相似，界面友好，易学易用，在调试程序，软件仿真方面也有很强大的功能。因此很多开发51应用的工程师或普通的单片机爱好者，都对它十分喜欢。
上传时间： 2019-10-28
上传用户：a798131165
High-Speed, Low-Power Dual Operational Amplifier The AD826 features high output current drive capability of 50 mA min per amp, and is able to drive unlimited capacitive loads. With a low power supply current of 15 mA max for both amplifiers, the AD826 is a true general purpose operational amplifier. The AD826 is ideal for power sensitive applications such as video cameras and portable instrumentation. The AD826 can operate from a single +5 V supply, while still achieving 25 MHz of band width. Furthermore the AD826 is fully specified from a single +5 V to ±15 V power supplies. The AD826 excels as an ADC/DAC buffer or active filter in data acquisition systems and achieves a settling time of 70 ns to 0.01%, with a low input offset voltage of 2 mV max. The AD826 is available in small 8-lead plastic mini-DIP and SO packages.
上传时间： 2020-04-19
上传用户：su1254
This book gives a comprehensive overview of the technologies for the advances of mobile radio access networks. The topics covered include linear transmitters, superconducting filters and cryogenic radio frequency (RF) front head, radio over fiber, software radio base stations, mobile terminal positioning, high speed downlink packet access (HSDPA), multiple antenna systems such as smart antennas and multiple input and multiple output (MIMO) systems, orthogonal frequency division multiplexing (OFDM) systems, IP-based radio access networks (RAN), autonomic networks, and ubiquitous networks.
标签： Advances Networks Access Mobile Radio in
上传时间： 2020-05-26
上传用户：shancjb
Employing multiple transmit and receive antennas, namely using multi-input multi-output (MIMO) systems, has proven to be a major breakthrough in providing reliable wireless communication links. Since their invention in the mid-1990s, transmit diversity, achieved through space-time coding, and spatial multiplexing schemes have been the focus of much research in the area of wireless communications.
标签： Communication Systems Coding MIMO for
上传时间： 2020-05-26
上传用户：shancjb
Multiple-Input Multiple-Output (MIMO) systems have recently been the subject of intensive consideration in modem wireless communications as they offer the potential of providing high capacity, thus unleashing a wide range of applications in the wireless domain. The main feature of MIMO systems is the use of space-time processing and Space-Time Codes (STCs). Among a variety of STCs, orthogonal Space-Time Block Codes (STBCs) have a much simpler decoding method, compared to other STCs
标签： Orthogonal Space-Time Processing Complex
上传时间： 2020-05-26
上传用户：shancjb
Multiuser multiple-input-multiple-output (MU- MIMO) systems are known to be hindered by dimensionality loss due to channel state information (CSI) acquisition overhead. In this paper, we investigate user-scheduling in MU-MIMO systems on account of CSI acquisition overhead, where a base station dynamically acquires user channels to avoid choking the system with CSI overhead.
标签： Acquisition Dynamic Channel
上传时间： 2020-05-27
上传用户：shancjb
The writing of this book was prompted by two main developments in wireless communications in the past decade. First is the huge surge of research activities in physical-layer wireless communication theory. While this has been a subject of study since the 60’s, recent developments in the field, such as opportunistic and multi-input multi-output (MIMO) communication techniques, have brought completely new per- spectives on how to communicate over wireless channels.
标签： Communication Fundamentals Wireless of
上传时间： 2020-05-27
上传用户：shancjb
