Using the combination of some constellations, the multimode navigation receiver can receive the signals of some kind of satellite system. This combined positioning technology advances the reliability of the system, and the precision for positioning and time service.
多模导航接收机接收多个卫星系统的信号,采用多星座卫星组合定位技术,提高了系统的可靠性和定位、授时精度,减少了对单一导航系统的依赖性。
参考来源 - BD/GLONASS卫星接收机基带处理研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The demodulated 1-bit signal values are bitwise logically combined (e. g., XORed) with the positioning system modulation code to produce a plurality of 1-bit correlation values.
将解调的1位信号值与定位系统调制码逐位进行逻辑组合(例如异或)，以产生多个1位相关值。
The demodulated signal value word is bitwise logically combined with the positioning system modulation code word to produce a correlation value word.
将解调的信号值字与定位系统调制码字逐位进行逻辑组合以产生相关值字。
Conclusion: ct positioning SCN combined Chinese herbal medicine treatment has definite therapeutic effect in treating PIVD.
结论：头颅CT定位围针配合中药治疗多发梗塞性痴呆有一定疗效。
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