串口通讯，可以自定义串口，波特率，数据位，停止位，校验位，实时监控串口内容进行读取，并根据数据包的不同进行显示。-Serial communication, you can customize the serial port, baud rate, data bits, stop bits, parity bit, real-time monitoring of serial port to read the content and, based on different data packet

关于NMEA0183协议的相关说明，讲解了各个数据位表示了什么内容。-Instructions on the NMEA0183 protocol, explained what all the contents of the data bits.

应用GPS9805模块和1602液晶，实现了精确时间和有效位的显示。其他的参数提取可以参考此函数，选用带有大RAM的处理器即可。-Apply the GPS9805 module and 1602 LCD, and achieve a precise display of time and effective bits . Other parameters can refer to this function, choose a processor with a large RAM.

码数控振荡器相位累加器的位数N为32,利用verilog HDL语言在Quartus II 9.1中具体实现了载波和码NCO的设计。,The code numerically controlled oscillator phase accumulator bits N 32 verilog HDL language in the concrete realization of the design of the carrier and code NCO Quartus II 9.1.