Description: 采样率转换代码，在数字信号处理过程中，实现不同采样率系统的数据传送。-sample rate conversion code in digital signal processing to achieve different sampling rate of data transmission. Platform: |
Size: 11619 |
Author:张承云 |
Hits:
Description: 基于PIC单片机的1-w总线读写函数，可用于数字 温度传感器的数据传输！-PIC on the 1-w Bus reader function can be used for digital temperature sensor data transmission! Platform: |
Size: 1439 |
Author:小虫 |
Hits:
Description: IA4420 工作在315/433/868/915MHz 频段（IA4421 工作在433/868/915MHz 频段）；
2． 低电压工作，工作电压2.2V~5.4V；
3． 低功耗模式，待机电流0.3uA；
4． 调制模式FSK，并具备高度集成的PLL；
5． 低发射功率、高接收灵敏度设计，发射功率5~10 dbm 可调，接收灵敏度-109 dbm；
6． 内置时钟输出，可省掉MCU 的晶振；
7． 传输数据率高，数字信号可达115.2 kbit/s,模拟信号可达256 kbit/s；
8． 发射频偏与接收带宽可调；
9． 内部有数字滤波器，并可以根据要求选择不同的方式；
10． SPI 的控制接口，方便使用；
11． 接收时有数据同步码识别器，系统检测同步码后将后面的数据输出；
12． 有16 位的收发缓存器，用来缓存接收到或要发送的数据（接收数据有两种方式，用户可以按需选择）；
13． 有低电压检测器，从2.2-5.4V 可调；
14． 有定时唤醒功能，定时时间可达几天；
15． 天线的兼容性强，有天线自动调节功能，并可采用PCB 或外置天线；
16． 工作温度范围-40~85，储存温度范围-55~125℃；
17． 采用微小TSSOP16 封装。
-315/433/868/915MHz IA4420 work in the band (IA4421 Working in 433 / 868/915MHz band); 2. Low-voltage, voltage 2.2 V ~ 5.4V; 3. Low-power mode, standby current 0.3 uA 169 * 85 *; 4. FSK modulation mode, and highly integrated PLL; 5. Low emission power and high receiver sensitivity, launched power 5 ~ 10 dbm adjustable, -109 dbm receiver sensitivity; 6. Built-in clock output can be saved MCU resonator; 7. Higher data transmission rate, digital signal of up to 115.2 kbit / s, analog signal up to 256 kbit / s; 8. Emission Offset and receiving adjustable bandwidth; 9. Internal digital filters, and may request to have a choice of different ways; 10. SPI control interface, and ease of use; 11. When receiving data synchronization code identifier, the system will detect synchronous code behind the Platform: |
Size: 39433 |
Author:songxiaoyan2008 |
Hits:
Description: C51实例代码：FLASH驱动，IIC，usart，触摸液晶控制显示，电热壶烧水程序，定点滤波，定时器及计数器的生成，二分法查表，浮点滤波，浮点滤波，控制SED1335的液晶显示，软件看门狗，十六进制_BCD码相互转换，时间倒计时，实时时钟，数字时钟，温度芯片驱动，无线数据传输，以太网芯片-C51 code examples : Flash-driven, IIC, usart, touch control LCD, Electric pot boiling water procedure, sentinel filtering, timer and counter the production, Tabular dichotomy, floating point filtering, floating point filtering, SED1335 control of the LCD, software watchdog, the hexadecimal code _BCD conversion, Countdown time, real-time clock, digital clock and temperature chip-driven, wireless data transmission and Ethernet Chip Platform: |
Size: 311938 |
Author:Jawen |
Hits:
Description: 数字图像传输是图像编码与压缩技术的另一个重要应用领域。随着现代社会对通信业务要求的不断增长，图像通信和通信网容量的矛盾日益突出。特别是具有庞大数据量的数字图像信息更是难以传输和存储，极大地制约了图像通信的发展，已经成为图像通信发展中的瓶颈。图像压缩技术的应用为传真、视频点播、电视会议、医用图像传输等领域带来了巨大经济效益。快速压缩解压缩算法及其硬件结构在实时视频系统中起着关键的作用。
-digital image transmission of image coding and compression technologies Another important application areas. As modern society to the requirements of the communications business continued to grow, image communication and communication network capacity contradictions are becoming more prominent. Especially with the huge amount of data digital image information more difficult for transmission and storage, has greatly restricted the development of image communication, image communication has become a bottleneck in development. Image compression technology for the application by fax, video-on-demand, video-conferencing, transmission of medical images and other areas has brought huge economic benefits. Rapid compression and decompression algorithms in hardware for real-time video system plays a Platform: |
Size: 2210464 |
Author:陈兵 |
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Description: 随着数字家庭技术的不断进步，数字产品日益渗透到社会生活的各个领域，这些为未来数字家庭的实现奠定了基础。本文从数字家庭中无线网络的角度出发，分析了家庭无线网络应满足的技术要求；从普通数据传输和支持流媒体应用等方面比较了目前市场上家庭无线网络技术解决方案的特点；结合数字家庭中对数据传输的要求，着重描述了目前主流无线网络的技术发展走向，最后介绍了家庭无线网络的多种新应用模式。-the continuous advancement of technology, the growing penetration of digital products to the community in all areas of life, These figures for the future realization of the family laid the foundation. This paper from the digital home wireless network perspective, the analysis of a home-based wireless network should meet the technical requirements; From ordinary data transmission and streaming media applications support aspects of the current market home wireless network technology solutions to special ; combine digital family of data transmission requirements, describes the current focus on mainstream wireless network technology development trend, and Finally, a home-based wireless networks use a variety of new models. Platform: |
Size: 814925 |
Author:麦克狼 |
Hits:
Description: 无线通信系统
1、系统由一个主站，多个从站组成。主站以轮询方式收集从站的数据，每次传输一组仿真数据。
2、从站有两组数字信号。从站传输哪一组数据由主站决定。
3、设计制作无线半双工收发单元，其工作频率（400-500）MHz中自行选择，各收发单元工作频率的相对准确性（以主站工作频率为基准）优于10-4。所有收发单元的发射功率不大于1w。
4、主从站收发天线长度 1m，垂直放置。
5、主站能实时显示发送数据的从站好及其数据。从站能实时显示本站发送给主站的数据；从站采用电池供电。
-a wireless communication system, the system consists of a master station, a number of components from the station. Polling stations in the main collection of data from each group a transmission simulation data. 2, only two points from the digital signal. Transmission from which data from the main points decision. 3 and the design of wireless half-duplex transceiver modules, its frequency (400-500) MHz which to choose, the frequency transceiver modules relative accuracy (to the main points of the baseline frequency) is better than 10 -4. All transceiver module fired power less than a w. 4, the main station transceivers from the antenna length of 1m, placed vertically. 5, the main station can send real-time display of data from the good points and its data. From the station can send real-tim Platform: |
Size: 3551 |
Author:liujia002007 |
Hits:
Description: 采样率转换代码，在数字信号处理过程中，实现不同采样率系统的数据传送。-sample rate conversion code in digital signal processing to achieve different sampling rate of data transmission. Platform: |
Size: 11264 |
Author:张承云 |
Hits:
Description: 基于PIC单片机的1-w总线读写函数，可用于数字 温度传感器的数据传输！-PIC on the 1-w Bus reader function can be used for digital temperature sensor data transmission! Platform: |
Size: 1024 |
Author:小虫 |
Hits:
Description: IA4420 工作在315/433/868/915MHz 频段（IA4421 工作在433/868/915MHz 频段）；
2． 低电压工作，工作电压2.2V~5.4V；
3． 低功耗模式，待机电流0.3uA；
4． 调制模式FSK，并具备高度集成的PLL；
5． 低发射功率、高接收灵敏度设计，发射功率5~10 dbm 可调，接收灵敏度-109 dbm；
6． 内置时钟输出，可省掉MCU 的晶振；
7． 传输数据率高，数字信号可达115.2 kbit/s,模拟信号可达256 kbit/s；
8． 发射频偏与接收带宽可调；
9． 内部有数字滤波器，并可以根据要求选择不同的方式；
10． SPI 的控制接口，方便使用；
11． 接收时有数据同步码识别器，系统检测同步码后将后面的数据输出；
12． 有16 位的收发缓存器，用来缓存接收到或要发送的数据（接收数据有两种方式，用户可以按需选择）；
13． 有低电压检测器，从2.2-5.4V 可调；
14． 有定时唤醒功能，定时时间可达几天；
15． 天线的兼容性强，有天线自动调节功能，并可采用PCB 或外置天线；
16． 工作温度范围-40~85，储存温度范围-55~125℃；
17． 采用微小TSSOP16 封装。
-315/433/868/915MHz IA4420 work in the band (IA4421 Working in 433/868/915MHz band); 2. Low-voltage, voltage 2.2 V ~ 5.4V; 3. Low-power mode, standby current 0.3 uA 169* 85*; 4. FSK modulation mode, and highly integrated PLL; 5. Low emission power and high receiver sensitivity, launched power 5 ~ 10 dbm adjustable,-109 dbm receiver sensitivity; 6. Built-in clock output can be saved MCU resonator; 7. Higher data transmission rate, digital signal of up to 115.2 kbit/s, analog signal up to 256 kbit/s; 8. Emission Offset and receiving adjustable bandwidth; 9. Internal digital filters, and may request to have a choice of different ways; 10. SPI control interface, and ease of use; 11. When receiving data synchronization code identifier, the system will detect synchronous code behind the Platform: |
Size: 38912 |
Author: |
Hits:
Description: C51实例代码：FLASH驱动，IIC，usart，触摸液晶控制显示，电热壶烧水程序，定点滤波，定时器及计数器的生成，二分法查表，浮点滤波，浮点滤波，控制SED1335的液晶显示，软件看门狗，十六进制_BCD码相互转换，时间倒计时，实时时钟，数字时钟，温度芯片驱动，无线数据传输，以太网芯片-C51 code examples : Flash-driven, IIC, usart, touch control LCD, Electric pot boiling water procedure, sentinel filtering, timer and counter the production, Tabular dichotomy, floating point filtering, floating point filtering, SED1335 control of the LCD, software watchdog, the hexadecimal code _BCD conversion, Countdown time, real-time clock, digital clock and temperature chip-driven, wireless data transmission and Ethernet Chip Platform: |
Size: 311296 |
Author:Jawen |
Hits:
Description: 随着数字家庭技术的不断进步，数字产品日益渗透到社会生活的各个领域，这些为未来数字家庭的实现奠定了基础。本文从数字家庭中无线网络的角度出发，分析了家庭无线网络应满足的技术要求；从普通数据传输和支持流媒体应用等方面比较了目前市场上家庭无线网络技术解决方案的特点；结合数字家庭中对数据传输的要求，着重描述了目前主流无线网络的技术发展走向，最后介绍了家庭无线网络的多种新应用模式。-the continuous advancement of technology, the growing penetration of digital products to the community in all areas of life, These figures for the future realization of the family laid the foundation. This paper from the digital home wireless network perspective, the analysis of a home-based wireless network should meet the technical requirements; From ordinary data transmission and streaming media applications support aspects of the current market home wireless network technology solutions to special ; combine digital family of data transmission requirements, describes the current focus on mainstream wireless network technology development trend, and Finally, a home-based wireless networks use a variety of new models. Platform: |
Size: 815104 |
Author:麦克狼 |
Hits:
Description: 无线通信系统
1、系统由一个主站，多个从站组成。主站以轮询方式收集从站的数据，每次传输一组仿真数据。
2、从站有两组数字信号。从站传输哪一组数据由主站决定。
3、设计制作无线半双工收发单元，其工作频率（400-500）MHz中自行选择，各收发单元工作频率的相对准确性（以主站工作频率为基准）优于10-4。所有收发单元的发射功率不大于1w。
4、主从站收发天线长度 1m，垂直放置。
5、主站能实时显示发送数据的从站好及其数据。从站能实时显示本站发送给主站的数据；从站采用电池供电。
-a wireless communication system, the system consists of a master station, a number of components from the station. Polling stations in the main collection of data from each group a transmission simulation data. 2, only two points from the digital signal. Transmission from which data from the main points decision. 3 and the design of wireless half-duplex transceiver modules, its frequency (400-500) MHz which to choose, the frequency transceiver modules relative accuracy (to the main points of the baseline frequency) is better than 10-4. All transceiver module fired power less than a w. 4, the main station transceivers from the antenna length of 1m, placed vertically. 5, the main station can send real-time display of data from the good points and its data. From the station can send real-tim Platform: |
Size: 3072 |
Author: |
Hits:
Description: 红外通讯系统设计比较
红外通讯以红外线作为通讯载
体，通过红外光在空中的传播来传
输数据，它由红外发射器和红外接
收器来完成。在发射端，发送的数
字信号经过适当的调制编码后，送
入电光变换电路，经红外发射管转
变为红外光脉冲发射到空中；在接
收端，红外接收器对接收到的红外
光脉冲进行光电变换，解调译码后
恢复出原信号。
红外通讯作为一种数据传输-Infrared communication system design compared to infrared communication infra-red as a communications carrier, through infrared light spread in the air to transmit data, it is by infrared transmitter and infrared receiver to complete. In the transmitter, sending the digital signal through an appropriate modulation coding, the transformation into the electro-optical circuit, the infrared emission tube into infrared light pulses launched into the air in the receiver, infrared receiver infrared docking received light pulses to photovoltaic conversion, demodulation decoding recovery of the original signal. Infrared communications as a data transmission Platform: |
Size: 78848 |
Author:刘阳 |
Hits:
Description: 基于Visual C++的PCI数据总线采集信号，将数字模拟量通过采集卡传输到电脑-Based on Visual C++ the PCI bus data acquisition signal, the digital analog transmission to a computer via capture card Platform: |
Size: 10240 |
Author:tangshuaitao |
Hits:
Description: 利用数字温度传感器DS18B20与单片机结合来测量温度控制器，使用单片机AT89C51,测温传感器使用DS18B20，用3位共阳极LED数码管以串口传送数据，实现温度显示。-Binding to measure the temperature controller, using the AT89C51 microcontroller, DS18B20 temperature sensors, with a common anode three LED digital serial transmission of data to achieve using a digital temperature display and temperature sensor DS18B20 microcontroller. Platform: |
Size: 113664 |
Author:王雨文 |
Hits:
Description: Analog transmission. Analog transmission is a transmission method of conveying voice, data, image, signal or video information using a continuous signal which varies in amplitude, phase, or some other property in proportion to that of a variable. ... Others define that as digital transmission and as a digital signal. Platform: |
Size: 616448 |
Author:khang
|
Hits:
Description: Serial link systems have gradually dominated over parallel link systems in modern
high-speed data link communications. The use of differential signal serial
communications prolongs the length of the data transmission channels, which parallel
communications can not match due to the signal degradation effects caused by, for
example, crosstalk among parallel link wires. In addition, the maximum tolerable skew
among the parallel link wires limits their maximum allowable data transmission speed.
This chapter provides an introduction to serial link systems and also gives an outline of
the thesis, which is devoted to the development of single chip, high-speed, serial link
communications techniques for multi-channel and multi-standard applications. Platform: |
Size: 3511236 |
Author:61219131@qq.com |
Hits:
Search - digital data transmission