The invention discloses a
control system and method for continuously adjusting the output power of a low-
clutter system, and the
system comprises a
local oscillator source, a power divider, and a plurality of
klystron amplification branches connected in parallel, the
local oscillator source generates an initial
microwave signal, the
signal is distributed to each
klystron amplification
branch connected in parallel through the power divider, and the
klystron amplification branches are connected in parallel. A PIN electrically controlled attenuator in the klystron amplification
branch receives a control
voltage from a
control system, and a
microwave switch receives a digital switch
signal from the
control system and is used for on-off control of the
branch; the signal processed by the klystron amplification branch is amplified by the klystron and then enters the bidirectional coupler, and the bidirectional coupler is used for
coupling sampling signals of incident power and reflection power and sending the sampling signals to the control
system; the
microwave power output by the bidirectional coupler is injected into the
plasma; the method has the advantages that the problem that the
power regulation range of an existing system is limited, and particularly continuous regulation cannot be achieved in a low-power section is solved.