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trunk-hdlc.rar
- 高级链路层协议的实现,vhdl,fpga,- 8 bit parallel backend interface - use external RX and TX clocks - Start and end of frame pattern generation - Start and end of frame pattern checking - Idle pattern generation and detection (all ones) - Idle pattern
Quartus
- Quartus程序是滤波器+功率检测+相关计算+TDD时隙切换,从滤波输出的过采样信号中随机指定输出其中的一路信号输出用来做功率检测和相关计算,相关计算完全采用串行计算比较的方式得到最大值,然后根据这个最大值的位置推算出上、下行时隙的切换点位置。-Filter+ Quartus program is related to computing power detection++ TDD time slot switch, from the filtered output signal over a
PN4
- 语言:VHDL 功能:该PN4序列的特点为将一个4位序列的前两位取异或,再让序列左移一位,用异或的结果作为序列的最后一位。序列周期是15,即15位伪随机序列。其中包括序列的产生模块和检测模块。对于误码检测,首先捕获相位。然后,规定测试的码的总个数,统计这些码中有多少个不能满足PN序列特点的,用计数器统计个数。如果发现误码过多,可能是相位失调,重新捕获相位,再进行误码检测。 仿真工具:modelsim 综合工具:quartus -Language: VHDL function:
M-sequence
- M序列具有伪随机特性,代码包含了M序列的生成和检测,可用于帧同步系统。-M-sequence has a pseudo-random properties, including the M-sequence code generation and detection, can be used for frame synchronization system.
random
- 8位伪随机序列发生器。在通信加扰,序列检测中有很强的工程应用-8 pseudo-random sequence generator. In communications scrambling sequence detection has a strong engineering applications
frame
- verilog编写的帧同步检测代码及仿真程序。帧信息序列用伪随机码表示,同步码为100110-frame synchronization detection code written in verilog and simulation procedures with frame information using a pseudo-random code sequence, and synchronization code 10011011