High-speed target multichannel compensation focusing and TBD mixed accumulation detection method

Directing at the problem that ability of an existing radar in discovering a hypersonic-speed invisible maneuvering target is low, the invention provides a high-speed target multi-channel compensation focusing and TBD mixed accumulation detection method. Focusing treatment of distance walk compensation and phase compensation and coherent accumulation of reality signals are performed on a hypersonic-speed target echo signal through multiple channels concurrently, and TBD treatment is performed through multiple speed channels during a scanning period of a radar, non-coherent accumulation along a target movement trajectory is realized, the calculation amount is reduced through information interaction between two stages, detection of a target is realized through a method of optimal selection of multiple channels, and continuous and rapid detection of a hypersonic-speed invisible target by the radar is improved. Compared with a traditional coherent accumulation method, the method provided by the invention has a lower minimum detection signal to noise ratio, and reducing the calculation amount, size of memory and complexity through information interaction between coherent accumulation and non-coherent accumulation, thereby facilitating engineering realization.