For two-dimensional fuzzy functions using different signals, time and frequency (ie, the composite autocorrelation function represents the difficulty of solving two targets with different distances and speeds)
For two-dimensional blur functions that use different signals, times, and frequencies (i.e., composite selfcorrelation functions indicate the difficulty of solving two targets with different distances and speeds)
For two-dimensional fuzzy functions with different signals, time and frequency (i.e., the composite autocorrelation function represents the difficulty of solving two targets with different distances and speeds)<br>