wherein the step1 further comprises:

dividing a coverage airspace of the radar into M azimuth sectors centering on the radar through the cooperative engagement processer, wherein M is a number of equal parts of 360°, and a sector angle of each azimuth sector is 360°/M; and

establishing two types of radar data storage structures according to the azimuth sectors, wherein the two types of radar data storage structures are the plot data storage structure and the track data storage structure;

wherein, the plot data storage structure is corresponding to plot sectors and configured for storing the received target plot data, and the track data storage structure is corresponding to track sectors and configured for storing the track data obtained by the cooperative engagement processer by processing the target plot data;

ranges of the plot sectors and the track sectors are consistent, or the ranges of the plot sectors and the track sectors are offset by half of the azimuth sector; and

the plot sectors are arranged in an order of plot detection time; and the track sectors are arranged according to an increasing order of track azimuth:

wherein from the step 2 to 5 further comprises:

the coverage airspace of the radar on each platform is divided into M azimuth sectors, and the CEP of each platform establishes corresponding plot storage areas and track storage areas for 32 sectors, wherein the area number N=0, 1, 2, . . . , and M;

set any one of the platforms as platform A, as the radar scans, the CEP continuously receives the target plot data, performs the projection error correction and data register, and then consolidates the data into the plot file format, and stores the plot file format in the plot sector corresponding to the target azimuth; for example, if a target azimuth angle is a, the plot file format is stored in an custom-characterstorage area

when the radar scans an azimuth where an N-th sector ends, the CEP takes plots in {N,(N−1),(N−2)} sectors for time alignment processing, then takes tracks of an (N−1)-th sector and these plots for space-time unifying, batch number unifying and correlation solving to generate a target track update file, which is stored in the corresponding track storage area according to the target azimuth; when scanning an azimuth wherein next (N+1)-th section ends, the same processing is repeated for the (N+1)-th sector; as the radar scans, the processing goes through each sector, and goes round and round and iterates continuously to obtain a target motion track, wherein the target motion track is the track;

the CEPs of the four platforms perform the same operation in parallel, and convert the track information possessed respectively into longitude and latitude coordinates and send the longitude and latitude coordinates to CEPs of another platform in the network in real time, in coordinate conversion, a geographical coordinate reference point should be set as (0°,0°) to avoid additional target position errors due to coordinate conversion residuals caused by taking longitude and latitude of an aircraft as a reference;

after receiving trajectory information, all platforms process it simultaneously;

still taking the platform A as an example, the CEP receives the target track information of the remote radar, which is first displayed to ensure low delay, then converted to a coordinate system centered on the radar position of the platform A, then the remote data is registered, and inserted into the plot storage area of the CEP according to the target azimuth, for example, if the target azimuth is a, the data is inserted into the storage area, and when the radar of the platform scans the sector, the data is subjected to plot composite processing with the radar of the platform to ensure high accuracy; track information comprising “batch number, heading, speed and time” is reserved in the plot file for time aligning and batch number unifying;

the cooperative engagement processer of each platform executes the same program, which can accurately combine the independent radars of each platform into a “big radar”, and solve the problem that members on the data link share the single integrated picture without a central node;

the remote radar target is transformed into the tracking effect of the platform, and even if the radar of the platform is in a silent state, that is, the radar of the platform only scans but does not radiate, the target can be locked and the target situation can be shared; and

composite tracking processing is synchronized with the radar scanning of the platform, and the target tracking delay is minimal, which is beneficial to accurate control.