| 1. | Optical digital loop carrier equipment sdh - base
同步数位阶层光数位回路载波机设备 |
| 2. | Optical digital loop carrier equipment sdh - based
同步数位阶层光数位回路载波机设备 |
| 3. | Optical digital loop carrier equipment sonet - base
同步光纤网路光数位回路载波机设备 |
| 4. | Optical digital loop carrier equipment sonet - based
同步光纤网路光数位回路载波机设备 |
| 5. | The key techniques , application and selected method of power line carrier equipment
电力线载波机的关键技术及应用 |
| 6. | Speech - plus single sideband power - line carrier terminals telecontrol signal interface
复用型单边带电力线载波机远动信号接口 |
| 7. | Piezoelectric ceramic filters for use in electronic equipment . detail specification for piezoelectric ceramic band - pass filter type lt13 . 2m for use in carrier . assessment level e
电子设备用压电陶瓷滤波器详细规范. lt13 . 2m型载波机用带通压电陶瓷滤波器.评定水平e可供认证用 |
| 8. | Piezoelectric ceramic filters for use in electronic equipment . detail specification for piezoelectric ceramic band - pass filters type . lt48b lt116b lt68d lt80d lt120d lt124d and lt124b lt172b for use in carrier assessment level e
电子设备用压电陶瓷滤波器详细规范. lt48b lt116b lt68d lt80d lt120d lt124d和lt124b lt172b型载波机用带通压电陶瓷滤波器.评定水平e可供认证用 |
| 9. | In the field of traditional power line carrier ( plc ) communications , the modulation - demodulation cells of plc were implemented in means of analog method . the traditional plc systems can ’ t catch up with the market demands for higher communication quality
在传统的电力线载波通信领域,电力线载波机的调制解调单元都是用模拟器件实现的,这种传统的载波机已不能完全满足现有市场对通信质量的要求。 |
| 10. | It presents particularly the modulation and demodulation ways of the fsk and bpsk . from analyzing , the hardware circuit and software flow scheme of plc based on dsp are designed . the paper researchs and develops a digital modulation and demodulation plc system
通过分析，分模块设计了基于dsp的数字电力线载波机的硬件电路方案和软件设计方案，研究开发了一种全数字调制解调的电力线载波机系统。 |
