随着新技术的不断发展，数字期间有了越来越广泛的应用。在扩频系统中，已经开始研制数字相关解调器，从理论上讲，数字相关解调器必须有一个量化环节，因此，与模拟器件相关解调器相比，系统的信噪比会有所降低。但数字相关器件与模拟相关器件相比有更多的有点，模拟器件不容易做的大的时间带宽积，器件的性能对温度变化较敏感，而且编程困难，所以，数字相关解调的方案有独特的吸引力。
With the continuous development of new technology, digital has become increasingly widely used during the period. In spread spectrum systems, has started to develop digital correlation demodulator, in theory, digital correlation demodulator must have a quantitative aspect, therefore, associated with the analog device demodulator, system signal to noise ratio will be decreased. However, figures related to the relevant devices and analog devices with more than a little bit, analog devices is not easy to do big time bandwidth product, device performance is sensitive to temperature change, and programming have, therefore, the number of programs associated with demodulation unique appeal. (2010-06-07, C++, 271KB, 下载5次)
本程序为美信公司单线式温度传感器DS18B20的温度读取和显示，
DS18B20采用外部供电方式，数据线接到单片机的P2.7口，一只
接入方式，不读取ROM直接跳过，温度数据将小数部分处理掉，
只要整数部分。显示器使用的是接在P0口的8段,4位共阴数码管
因专用板所以码值与一般常规不一样.温度传感器默认的12bits
的格式，并在数据上做了处理，将小数部分和负温度抛弃了.
增加了温度报警功能,可以设置最大值和最小值.
This program is Maxim temperature sensor DS18B20 single temperature reading and display, DS18B20 using an external power supply, data cable to the MCU P2.7 port, an access way, do not skip reading ROM, fractional part of the temperature data will be disposed of, as long as the integer part. Display is connected using the P0 port 8, four common cathode tube because of dedicated board so the digital code value and general practices are no different. Temperature sensor default 12bits format, and made a deal with the data, the fractional part and negative temperature abandoned. an increase of temperature alarm function, you can set maximum and minimum values. (2010-05-22, C++, 2KB, 下载2次)