1. This paper introduces the importance of ranging for EPON, the principle of time-stamp ranging based on MPCP, and delay compensation. ������EPONϵͳ�в�༼���ı�Ҫ�ԣ������˻��ڶ�����Э���ʱ������Ļ���ԭ������������˲�����ʱ�������⡣
2. A wire rope ranging device which is composed of cylindrical cam is introduced. It can be used on small type winch for prevention of trouble caused by wire rope confused ranging. ����һ������Բ���ֵ��ۻ�����ɵ�����װ�ã������Է�ֹ��˿���ھ�Ͳ�ϻ���������ɵ��¹ʣ�����С�ͽʳ���Ӧ�á�
3. A robust scheme fit for inter-satellite ranging network is designed by analyzing the particularity of the inter-satellite ranging network. ͨ�������Ǽ������������ԣ�������������Ǽ������Ŀ������
4. Micro-pulse laser ranging is a new method in satellite laser ranging. ���弤���༼������һ�������������ϵͳ�����õľ������������
5. Micro-pulse laser ranging is a new method in satellite laser ranging. ���弤���༼������һ�������������ϵͳ�����õľ������������
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