For supplying evidences t o improve t he research of rural health resource allocation,this paper amalyzed cur rent status of rural health resource allo cation and the researches of rur al re source allocation standard.

Objective: To research the rational allocation standard of primary military health anti-epidemic human re-sources(PMHAHR).

An analysis of time registration in multi-sensor data fusion system;

This paper is concerned with the time registration of data-recording system(DRS).

Space registration and time registration are keys to fuse multi-sensor s data information effectively.

In consideration of the asynchronous problem of data from two sensors, a time aligning between the asynchronous data based on least square technique, and fusion method are presented.

Based on present time alignment algorithms,concept of alignment frequency is defined and methods of choosing alignment frequency are proposed.

A time alignment method of the asynchronous data based on least-square technique is presented.

According to this, this paper focuses on the study of bearings-only passive tracking system in the aspects of the target location, time alignment and nonlinear filtering algorithm.