To solve the problem that the range profile reference point is fixed to 0 m, in radar equipment using a conventional band synthesis process.

A phase correction amount calculation part 9 calculates a phase correction amount from a target prediction distance Rx, a range profile width L, and a distance resolution DR, which are externally inputted. A phase correction part 10 performs a phase correction calculation of N digital video signals vid stored in a memory 8 using the phase correction amount f so that the range profile reference point can be varied, and the target signal position on the range profile can be shifted to any range bin, independently of the relative distance between the radar equipment and a target.