Solid state radar has many advantages over traditional radar, the following are the main aspects:
Performance aspect
High resolution: can produce fully coherent, highly stable frequency, waveform complex signal output, can achieve large broadband, agile frequency conversion. Using pulse compression technology, wide pulse transmission increases the average transmission power to ensure the detection distance, and narrow pulse reception improves the range resolution, which can measure and identify the target more accurately, and effectively improve the detection ability of the target details, such as in the field of automatic driving, can identify road signs and obstacles more accurately.
Wide detection range: through the combined pulse emission mode, the long, medium and short pulses cover the near area, far area and middle area respectively, which can ensure sufficient detection power within the range. And using time diversity, frequency diversity and other technologies, greatly improve the detection ability of small targets, so that it can find and track targets in a wider range.
Reliability aspect
High stability: the transmitter uses an amplified chain transmitter, the signal control module generates low-power microwave signals, and the signal is enhanced by a multi-level low-voltage semiconductor power amplifier to output high-power signals. The entire working link is basically composed of low-voltage power supply semiconductor devices, and the probability of problems is greatly reduced. The average trouble-free time of the transceiver of the general solid-state shore-based surveillance radar is more than 200,000 hours, and the average trouble-free time of the entire radar system is as high as 10,000 hours, which is basically more than 2-3 times that of the traditional magnetron radar.
Strong anti-interference ability: solid state radar overcomes the problem of traditional radar affected by weather, light, etc., has good anti-interference ability, is not easily affected by environmental factors, such as light, dust, etc., can work stably in a variety of harsh conditions, can adapt to different working environments.
Cost and maintenance
Easy integration and low cost: Solid-state devices are small and easy to integrate, enabling low-cost and efficient production and manufacturing, which helps to reduce the overall cost of the device. At the same time, its structure is simple, durable, reduce the maintenance cost and frequency.
Outdoor deployment is convenient: digital network transmission is widely used, no additional data acquisition and processing terminals are required, and power supply cabinets or computer rooms are only set up under the tower to meet radar operation requirements, which reduces the demand for complex infrastructure and reduces infrastructure costs compared to traditional radar.
Safety aspect
High safety and low risk: Accurate ranging and identification of targets can be achieved, effectively improving safety in complex environments and reducing operational risks. For example, in the field of rail transit, solid-state radar can accurately measure the gap between the shield door and the train with a very small error range, ensuring the accuracy of the data and timely detection of potential safety hazards.
Other aspects
Fast data acquisition: The data acquisition speed is fast, the target information can be obtained in real time, which is suitable for the monitoring and tracking of fast moving targets, and can quickly respond to the changes of the target.
Good controllability: for phased array solid-state radar, the beam direction is completely controlled by electrical signals, can be arbitrarily pointed within the allowed Angle range, can be high-density scanning in key areas, but also to achieve multi-target monitoring, a phased array can be divided into several small modules, each module can be controlled separately to lock and monitor multiple targets at the same time.
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