Location:
Search - FM using PLL
Search list
Description: ％The phase locked loop(PLL),adjusts the phase of a local oscillator
％w.r.t the incoming modulated signal.In this way,the phase of the
％incoming signal is locked and the signal is demodulated.This scheme
％is used in PM and FM as well.
％We will implement it by using a closed loop system.Control systems
％techniques are applied here.
Platform: |
Size: 2464 |
Author: 张勇 |
Hits:
Description: This project allows you to learn communication systems in greater depth. It contains the Simulink files (*.mdl) which are block design files of various communication systems such as AM, DSB-SC, FM, PLL, Data Acquisition, Digital Data Transmission, PCM and Delta Modulation.
The idea here is to implement experiments of a traditional communication lab using Simulink.
Most of the block diagrams are self explanatory. More information on the systems and their implementation can be found in the word documents included in the lab directories
Platform: |
Size: 2469104 |
Author: haibak |
Hits:
Description: ％The phase locked loop(PLL),adjusts the phase of a local oscillator
％w.r.t the incoming modulated signal.In this way,the phase of the
％incoming signal is locked and the signal is demodulated.This scheme
％is used in PM and FM as well.
％We will implement it by using a closed loop system.Control systems
％techniques are applied here.- The phase locked loop (PLL), adjusts the phase of a local oscillator wrt the incoming modulated signal.In this way, the phase of the incoming signal is locked and the signal is demodulated.This scheme is used in PM and FM as well. We will implement it by using a closed loop system.Control systems techniques are applied here.
Platform: |
Size: 2048 |
Author: 张勇 |
Hits:
Description: This project allows you to learn communication systems in greater depth. It contains the Simulink files (*.mdl) which are block design files of various communication systems such as AM, DSB-SC, FM, PLL, Data Acquisition, Digital Data Transmission, PCM and Delta Modulation.
The idea here is to implement experiments of a traditional communication lab using Simulink.
Most of the block diagrams are self explanatory. More information on the systems and their implementation can be found in the word documents included in the lab directories-This project allows you to learn communication systems in greater depth. It contains the Simulink files (*. mdl) which are block design files of various communication systems such as AM, DSB-SC, FM, PLL, Data Acquisition, Digital Data Transmission, PCM and Delta Modulation. The idea here is to implement experiments of a traditional communication lab using Simulink.Most of the block diagrams are self explanatory. More information on the systems and their implementation can be found in the word documents included in the lab directories
Platform: |
Size: 2468864 |
Author: haibak |
Hits:
Description: 本系统采用调频方式实现了主站至从站的单工语音及数据传输业务。发射机以单片机SPCE061A为核心，采用MC145151锁相环完成FM调制等功能；接收机采用CXA1691完成FM解调功能；引入双音频编解码完成数据传输；利用市售红外遥控器实现了发射机英文字符的输入。-The system uses a frequency modulation approach to achieve the main points of the simplex from the station voice and data transmission. SPCE061A transmitter for a single-chip core, the MC145151 PLL FM modulation functions achieve receiver using FM demodulation functions achieve CXA1691 the introduction of dual-audio codec achieve data transmission the use of infrared remote control market implementation of the launching machine input English characters.
Platform: |
Size: 74752 |
Author: 兴中 |
Hits:
Description: 发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。-Part of the launch phase-locked loop frequency synthesizer using technology, MC145152 and MC12022 PLL chips to lock in the exact carrier frequency 35MHz, the output carrier to achieve the stability of 4 × 10-5, reaching the accuracy of 3 × 10-5 by the varactor diode V149 and integration to achieve MC1648 chip VCO FM modulation on the carrier selection transistor amplifier at the end of class 2SC1970, to work in the C state to enlarge and improve the efficiency of the amplifier output power to meet the design requirements.
Platform: |
Size: 2048 |
Author: 李伟 |
Hits:
Description: 文件中包含有AM, DSB-SC, FM, PLL, Data Acquisition, Digital Data Transmission, PCM和Delta Modulation的simulink环境下的实现 -This project allows you to learn the communication systems in greater depth by giving you
the reins to play with it ! It contains the simulink files (*.mdl) which are block design
files of various communication systems such as AM, DSB-SC, FM, PLL, Data Acquisition, Digital
Data Transmission, PCM and Delta Modulation.
Platform: |
Size: 2487296 |
Author: 胡欣 |
Hits:
Description: FM PLL transmitter, based on Sanyo LM7001 pll ic. using 89C2051 micom. complete with sourcode and PCB layout (in protel format).
Platform: |
Size: 72704 |
Author: ndowie |
Hits:
Description: The design of the All Digital FM Receiver circuit in this project uses Phase Locked Loop (PLL) as the main core. The task of the PLL is to maintain coherence between the input (modulated) signal frequency,iωand the respective output frequency,oωvia phase comparison. This self-correcting ability of the system also allows the PLL to track the frequency changes of the input signal once it is locked.
Frequency modulated input signal is assumed as a series of numerical values (digital signal) via 8-bit of analog to digital conversion (ADC) circuit. The FM Receiver gets the 8 bit signal every clock cycle and outputs the demodulated signal.
The All Digital FM Receiver circuit is designed using VHDL, then simulated and synthesized using ModelSim SE 6 simulator and Xilinx ISE 6.3i, respectively. FPGA implementation also provided, here we use Virtex2 device.
Platform: |
Size: 658432 |
Author: vijay |
Hits: