Millimeter-Wave Cloud Radar
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Meteorological Products
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Product Overview
Millimeter-Wave Cloud Radar is applicable across a wide range of fields, including aerospace launch meteorological support, atmospheric science research, weather modification operations, automated cloud observation, airport meteorological services, and military meteorological assurance.
This advanced radar system enhances cloud detection capabilities, enables high-resolution observation of the internal structures of hazardous weather systems, and improves the accuracy of quantitative precipitation measurements. It supports continuous monitoring throughout weather transitions—between clear and rainy conditions—thus contributing to more accurate nowcasting, numerical weather prediction, and climate modeling.
Moreover, it plays a critical role in improving the effectiveness of weather modification activities and provides valuable data for scientific research on cloud evolution, atmospheric circulation, and short-term weather forecasting. The system serves as a key tool in advancing meteorological operations and atmospheric sciences.
Item | Specification | |
Polarization Type | Scanning type | Dual-transmit dual-receive linear polarization (supports single-transmit dual-receive linear polarization) |
Transmitter Type |
| Fully solid-state |
Operating Frequency |
| Ka-band, selectable frequency within 34.5 GHz to 35.5 GHz, bandwidth ≤ 200 MHz |
System Lifetime |
| ≥ 8 years |
Detection Range |
| Surveillance ≥ 20 km, Quantitative ≥ 15 km |
Detectable Targets |
| Clouds, snow, light precipitation, etc. |
Near-Range Blind Zone |
| ≤ 150 m |
Scanning Mode |
| Elevation: 0°–180°, Azimuth: 0°–360° |
Base Data Product Measurement Range | Reflectivity Factor | -45 dBZ to +35 dBZ |
Radial Velocity | -15 m/s to +15 m/s | |
Spectral Width | 0 m/s to 8 m/s | |
Differential Reflectivity | -8 dB to +8 dB | |
Differential Phase Shift | -180° to +180° | |
Specific Differential Phase | -10°/km to +10°/km | |
Depolarization Ratio | -30 dB to 0 dB (in single-transmit dual-receive mode) | |
Correlation Coefficient | 0 to 1 | |
Base Data Product Resolution | Range | 30 m |
Angular | ≤ 0.4° | |
Temporal Resolution | ≤ 1 min | |
Reflectivity Factor | 0.1 dBZ | |
Radial Velocity | 0.1 m/s | |
Spectral Width | 0.1 m/s | |
Differential Reflectivity | 0.1 dB | |
Differential Phase Shift | 1° | |
Specific Differential Phase | 0.1°/km | |
Depolarization Ratio | 0.1 dB (in single-transmit dual-receive mode) | |
Correlation Coefficient | 0.01 | |
Base Data Product Measurement Accuracy | Reflectivity Factor | ±1 dB |
Radial Velocity | ±0.5 m/s | |
Spectral Width | ±0.5 m/s | |
Differential Reflectivity | ±0.2 dB | |
Differential Phase Shift | ±5° | |
Specific Differential Phase | ±0.2°/km | |
Depolarization Ratio | ±0.2 dB (in single-transmit dual-receive mode) | |
Correlation Coefficient | ±0.01 | |
Physical Measurement Accuracy | Cloud Base Height | ±100 m when cloud height < 1000 m; ±10% when cloud height ≥ 1000 m |
Cloud Top Height | ±100 m when cloud height < 1000 m; ±10% when cloud height ≥ 1000 m | |
Cloud Amount (Scanning Type) | ±20% | |
Minimum Detectable Reflectivity at Long Range (with 256-point FFT processing, excluding atmospheric attenuation) | ≤ -30 dBZ @ 10 km | |
System Phase Noise | ≤ 0.4° | |
Clutter Suppression Ratio | ≥ 42 dB | |
Power Supply | Single-phase AC 220 V ± 10%, 50 Hz ± 5% | |
Weight (Standard Configuration, Reference Value) | ≤ 2000 kg (excluding radome) | |
Environmental Requirements | Operating Temperature | Outdoor: -40 °C to +50 °C; Indoor: 0 °C to +40 °C |
Storage Temperature | -50 °C to +60 °C | |
Maximum Humidity (+30 °C) | Outdoor: ≤ 95%; Indoor: ≤ 90% | |
Wind Gust Resistance | Withstands up to 60 m/s (spherical radome), 30 m/s (conical radome) | |
Rain Exposure | Maximum precipitation intensity: 6 mm/min | |
Interference Immunity | Resistant to power supply interference, electromagnetic interference, and radio frequency interference | |
Other | Waterproof, salt-fog resistant | |
Peak Power Consumption | ≤ 3 kW | |
MTBF | ≥ 2000 h | |
MTTR | ≤ 0.5 h | |
Installation Method | Fixed or mobile installation supported | |
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