Interactive control apparatus and interactive system

An interactive control apparatus, comprising:

• an antenna array configured to transmit a radar signal and receive a reflected echo signal;
• a data processing assembly configured to determine, according to the radar signal and the echo signal, a body action and a corresponding control instruction, and output the control instruction to a terminal device;
• and
• a display assembly configured to display the determined body action and/or control instruction;
• wherein the data processing assembly comprises:
• a low noise amplifier, a mixer, an intermediate frequency amplifier, an analog-to-digital converter, a digital front-end component, a cache, a power amplifier, a power divider, and a waveform generator;
• wherein the low noise amplifier, the mixer, the intermediate frequency amplifier, the analog-to-digital converter, the digital front-end component, and the cache are connected to each other in sequence;
• the waveform generator, the power divider, and the power amplifier are connected to each other in sequence;
• and
• an input terminal of the mixer is further connected to the power divider, an input terminal of the low noise amplifier is connected to the antenna array, and an output terminal of the power amplifier is connected to the antenna array.