Abstract: A hierarchical adaptive equalizer and a design method thereof are disclosed. The design method divides N delay elements into a plurality of adaptive algorithms, each of the adaptive algorithms having ? delay elements. The design method logically structures a hierarchical tree with the adaptive algorithms. The hierarchical tree comprises ? levels. A top first level of the hierarchical tree comprises ???1 adaptive algorithms. A top second level of the hierarchical tree comprises ???2 adaptive algorithms. A bottom level of the hierarchical tree comprises an adaptive algorithm.

Abstract: A satellite tracking method is provided. The satellite tracking method first groups satellites into at least two groups on the basis of their arithmetic relationships, then determines whether any satellite of one selected satellite group is within the vision range of a receiving end with the use of a low dimension correlation device, and if that is the case synchronizes the satellite with the receiving end with the use of a full dimension correlation device.

Abstract: A hierarchical adaptive equalizer and a design method thereof are disclosed. The design method divides N delay elements into a plurality of adaptive algorithms, each of the adaptive algorithms having ? delay elements. The design method logically structures a hierarchical tree with the adaptive algorithms. The hierarchical tree comprises a levels. A top first level of the hierarchical tree comprises ???1 adaptive algorithms. A top second level of the hierarchical tree comprises ???2 adaptive algorithms. A bottom level of the hierarchical tree comprises an adaptive algorithm.

Abstract: A CDMA transmitting and receiving apparatus with multiple applied interface functions and a method thereof is provided. The apparatus is center around a system control unit. The system control unit includes a plurality of interface drivers that works with a base band signal processing unit for converting information of different kinds to a base band signal and then transmits through a communication transceiver. Alternatively, the system control unit also transmits information to at least one of the connecting interfaces when the communication transceiver receives a base band signal. Moreover, the apparatus also provides integration to information of different kinds allowing flexibility and adaptability thereby enabling an efficient and secured use of network management interfaces within a communication system.