The analysis of impact on error of codeposition for OCDMA system, Gained the formula of BER of system under the case.
分析了在光功率,码位误差,码长,单极码和双极码情况下对OCDMA系统性能的影响。
2
This kind of water meter adopts touching electric brush to convert codeposition of digital code wheel of water meter into voltage signal which will be input to micro-computer in parallel.
这种水表终端采用接触式电刷将水表字轮各码位转换为电平信号,并将检测的电平信号并行输入单片机。
3
Along with the input string, the SUBSTRING function has three other arguments, which are start position, length, and code unit specification.