Abstract: A system for scanning an object is provided. The system may include: a supporting table configured to support the object; a first signal conversion unit configured to receive one or more first signals associated with the object and convert the first signals into one or more second signals; and a signal receiver board configured to receive the one or more second signals. The first signal conversion unit may include a plurality of first signal receiving channels. Each first signal receiving channel may be configured to receive a first signal associated with a portion of the object. The supporting table and the signal receiver board may be configured to move relative to each other to cause the signal receiver board to receive at least one second signal corresponding to at least one first signal received by at least one target channel of the first signal receiving channels.

Abstract: A system for scanning an object is provided. The system may include: a supporting table configured to support the object; a first signal conversion unit configured to receive one or more first signals associated with the object and convert the first signals into one or more second signals; and a second signal receiver board configured to receive the one or more second signals. The first signal conversion unit may include a plurality of first signal receiving channels. Each first signal receiving channel may be configured to receive a first signal associated with a portion of the object. The supporting table and the second signal receiver board may be configured to move relative to each other to cause the second signal receiver board to receive at least one second signal corresponding to at least one first signal received by at least one target channel of the first signal receiving channels.

Abstract: A device for receiving RF signal is provided. The device includes a receiving component configured to receive a radio frequency (RF) signal and a sampling component configured to sample the RF signal. The sampling component may include a plurality of filters, a demultiplexer, a clock synthesizer, an analog-to-digital converter (ADC), and a digital signal processing device. The sampling component may obtain an intermediate frequency (IF) signal based on the plurality of filters, the demultiplexer, the clock synthesizer, the ADC, and the digital signal processing device.

Abstract: A device for receiving RF signal is provided. The device includes a receiving component configured to receive a radio frequency (RF) signal and a sampling component configured to sample the RF signal. The sampling component may include a plurality of filters, a demultiplexer, a clock synthesizer, an analog-to-digital converter (ADC), and a digital signal processing device. The sampling component may obtain an intermediate frequency (IF) signal based on the plurality of filters, the demultiplexer, the clock synthesizer, the ADC, and the digital signal processing device.

Abstract: A device for receiving RF signal is provided. The device includes a receiving component configured to receive a radio frequency (RF) signal and a sampling component configured to sample the RF signal. The sampling component may include a plurality of filters, a demultiplexer, a clock synthesizer, an analog-to-digital converter (ADC), and a digital signal processing device. The sampling component may obtain an intermediate frequency (IF) signal based on the plurality of filters, the demultiplexer, the clock synthesizer, the ADC, and the digital signal processing device.