Table 1 The key parameters for the UWB radar system

Center frequency

400 MHz

Amplitude of transmitted signal

50 v

Pulse repeated frequency

600 KHz

Average number

128

Total time window

124 ns

Sampling points

4096

Antenna gain

5–7 dBi

Input bandwidth of ADC

2.3 GHz

ADC sampling rate

500 MHz

Data bit

12 bit

Dynamic range of receiver

72 dB