MIRA-36 云雷达参数指标

雷达类型 Mono static, pulsed, magnetron 
频率 35.5 GHz +/- 100 MHz 
峰能量 30 kW 
占空比 max 1:500; typically 1:1000 
脉冲宽度 100, 200, and 400 ns according to 15, 30, and 60 m range resolution 
最小高度 150 m, full sensitivity - 6 dB above 300 m, full sensitivity -1.5 dB 400 m ， full sensitivity above 500 m 
最大高度 c * (1/PRF - 8 μs), due to calibration 
最大层数 2*500 (two polarizations) or 1* 1000 At full speed (no spectral averaging) 
多普勒速度分辨率 < 0.01 m/s 
脉冲重复频率 2.5 – 10 kHz according to velocity un-ambiguity of 11 – 42 m/s 
FFT Length 128, 256, 512, 1024 
最小平均时间 Moments of instantaneous spectra can be evaluated without skipping samples ifNFFT > 128. 
ADC for sampling the 280 MHz IF signal 125 MHz / 16 Bit / Digital Receiver 
瞬时接收动态范围 84 dB without automatic gain control104 dB with automatic gain control (Gain and with is sensitivity can only becontrolled for all ranges) 
天线类型 Cassegrain 
天线直径 1.0 m 
天线波束宽度 0.6 deg. x 0.6 deg, Gain = 49.5 dBi (6 dB/two-way) 
最大 Side lobe level -19.5 dB (at 1.2 deg) 
极化去耦 -37 dB 
其他天线 1.2m扫描型天线或1.9m天线 
接收器的噪声系数 3.4 dB (LNA) + 2.3 dB (T-R-switch) +0.2 dB (couplers and flanges) 
波导损失 2 * 0.55 dB 
灵敏度： -53.3 dBZ at 5 km -67.3 dBZ at 1 km （Sensitivity with prf=5 kHz, pulse width = 200 ns, nfft=256, averaging time 10 s ） 
磁控管寿命 > 1 Year