The important use of lidar-military use

Lidar is a radar system that emits light beams to detect the position and speed of the target. It is equivalent to our eyes, with powerful and complex information perception and processing capabilities. Excited light radar has been widely used in aircraft obstacle avoidance, reconnaissance imaging, missile guidance and other fields many years ago, and its application scenarios are extremely rich.

The laser scanning method is not only the main way to obtain 3D geographic information in the military, but also the data obtained through this way is also widely used in resource exploration, urban planning, agricultural development, water conservancy engineering, land use, environmental monitoring, transportation and communication, earthquake prevention Disaster reduction and national key construction projects have provided extremely important original data for the national economy, social development and scientific research, and have achieved significant economic benefits, demonstrating good application prospects.

Compared with traditional measurement methods, the low airborne LIDAR ground 3D data acquisition method has the advantages of low field cost of production data and post-processing cost. At present, the majority of users urgently need low-cost, high-density, fast, high-precision digital elevation data or digital surface data. The airborne LIDAR technology just meets this demand, so it has become a popular high-tech in various measurement applications.

The rapid acquisition of high-precision digital elevation data or digital surface data is a prerequisite for the widespread application of airborne LIDAR technology in many fields. Therefore, the research on the accuracy of airborne LIDAR data has very important theoretical value and practical significance. In this context, domestic and foreign scholars have done a lot of research on improving the accuracy of airborne LIDAR data.

Since the flight operation is the first process of lidar aerial surveying and mapping, it provides direct calculation data for subsequent internal data processing. According to the principle of measurement error and the basic principle of formulating “standards”, it is required that the errors contained in the results of the previous process should have the least impact on the latter process. Therefore, it is very meaningful to improve the data quality by studying the airborne lidar operation process and optimizing the design operation plan.