Heterogeneous Bistatic Radars (BR) have different sensing ranges and couplings of sensing regions. which provide more flexible coverage for the boundary at complex terrain such as across rivers and valleys. Due to the Cassini oval sensing region of a BR and the coupling of sensing regions among different BRs. the coverage problem of BR sensor networks is very challenging. https://www.lightemupsequences.com/flash-sale-Bachelorette-Party-Decorative-Picks-Pack-of-24-mega-choice