In　order　to　enhance　the　anti-jamming　capability　of　aeronautic　swarm　tactical　network　in　complicated　electromagnetic　environment,　the　simultaneous　transmitting　and　receiving　based　cognitive　anti-jamming　radio　was　employed　in　aeronautic　swarm　network,　and　the　improved　energy　detection　method　was　proposed　to　jamming　sensing.　In　the　case　of　single　and　multi-jammer,　the　closed　expression　of　false　alarm　probability　was　derived,　the　false　detection　probability　and　the　optimal　decision　threshold　of　jamming　sensing.　Simulation　results　show　that　jamming　sensing　performance　can　be　improved　by　adjusting　the　parameter　p　of　the　improved　energy　detector.　©　2019,　NUDT　Press.　All　right　reserved.