华为的td

因特殊的业务需要，某些电话交流需要在第三方的监视下进行，假定某电话交流由甲乙丙三方发起，丙为监听控制方，当甲开始说话时，丙可以不允许乙听，并且开始录音，当甲说完时，丙确定是否可以让乙听，如可以。给乙放录音，当乙说话时，重复以上操作。-because of special operational needs, some telephone exchanges in the surveillance of third parties under the assumption that a telephone exchange was launched by the tripartite B, and C to monitor the controlling party, began to speak when the A, B C can not listen, and began recording at the end when A and C to determine whether or not they can B listen, if we can. B recordings to release, when the B words, to repeat the operation.

1)生成2KHz和8KHz的混合信号，使该信号通过上述滤波器，观察滤波前后的波形变化和频谱分布情况。 2) 在改信号中加入高斯白噪声，观察滤波前后的波形变化和频谱分布情况3) 将上述滤波器改为中心频率为100KHz的带通滤波器，信号源为带外的90KHz和带内的100KHz的混合正弦信号，。 4) 用M文件实现上述低通滤波器。 -1) 2KHz and 8KHz to generate the mixed-signal, so that the signal through the above-mentioned filter, filter before and after observation of the waveform and spectrum distribution of the changes. 2) add to the signal in white Gaussian noise was observed before and after filtering and spectral waveform changes in the distribution of 3) will be replaced by the above-mentioned filter center frequency of 100KHz band pass filter, the signal source for the band and the band of 90KHz 100KHz Sine of the mixed signals. 4) achieve the above-mentioned documents with M low-pass filter.

最近，通过变换光学方法研究新型电磁器件，如斗篷、聚焦器、天线、新型波导的设计是一个热点问题，本代码采用了matlab与Comsol接口仿真外斗篷，能够将放置在斗篷外部的物体隐藏，代码中包含了建模，边界条件设置，激励源设置，外斗篷参数等信息，对这一研究方向的学者有帮助。

单片机设计之基于网络的虚拟仪器测试系统，希望对你有帮助-MCU design a Web-based Virtual Instrument Test System

诺基亚SIS格式签名工具，可以签名字库，软件，主题。有需要的收-Nokia SIS format signature tools, can be a signature font, software, themes. Has the need for admission

CDMA DATA TERMINAL DTM-500A/H/L Reference Manual

看看就知道，这个辕马不知道搭建看过没有 -see, we know that the structures do not know shaft horse not read

移动电话主要采用频率复用，但分配给移动电话的频段很少，远不能满足用户的需要。 因此就提出将地区划分成小区，称为蜂窝（Cell），每个蜂窝内使用一组频率，相隔一段距离后，相同的频率又可重复使用。 -The main use of mobile phone frequency reuse, but allocated to the small-band mobile phone, far from being able to meet the needs of users. Therefore proposed to be divided into residential areas, known as cellular (Cell), each use a set of cellular frequencies, separated by some distance, the same frequency can be reused.

An IEEE 802.15.4 protocol implementation (in nesC/TinyOS):Reference Guide v1.2  芯片是CC2530

1.Borland c++ builder 6.0开发的车站图文屏控制系统 2.有关SQL SERVER 2000存储过程操作 3.有关在BCB下的ADO的数据库管理 4.有关WIN32API串行通讯 5.有关图形图像变形操作技巧 -1.Borland 6.0 c builder station transmission Screen Control System 2. SQL SERVER 2000 operating three storage process. BCB in the ADO database management 4. The WIN32API serial communication 5. The graphic image deformation techniques