38 results about "Observation level" patented technology

The invention discloses an atmospheric refraction coefficient inverting method based on a trigonometric leveling network. The method comprises the following steps of acquiring trigonometric leveling network data; calculating the direct observation level difference hli and the reversed observation level difference h2i of each measured side in the network by the trigonometric leveling measuring method; calculating the number n of independent triangles in the network; calculating the sum Cj of the three sides of each triangle; calculating the weight Pj of each triangle in the network; calculating the level difference closure error omega j of each triangle; applying a constraint condition y; according to the relation between the constraint condition y and the atmospheric refraction coefficient k, drawing a curve graph; taking k value by using the curve graph and the constraint condition; and calculating discrepancy value delta i of the direct observation level difference and the reversed observation level difference, and finding out the k value which makes the y value minimum under the premise that the delta i and the omega j are not beyond limit. The method is more dynamic for the selection of the atmospheric refraction coefficient instead of separately using the atmospheric refraction reference coefficient; and the k value of each side is not required to be calculated, but the most appropriate k value applicable to the whole network is calculated according to related conditions, and the value has relatively high actual goodness fit, so that the applicability of the method is improved to certain degree.

The invention discloses an unmanned combat aircraft group encirclement control method imitating the hunting behavior of wolves, which is characterized in that: the method steps are as follows: step 1: initialize the motion model of the unmanned aerial vehicle; step 2: determine the observation level of wolves hunting roles; Step 3: Calculating the wolf pack leader-following target state observer; Step 4: Designing the encirclement control law of the leader wolf-slave wolf interaction mechanism; Step 5: Conversion of equivalent control instructions; Step 6: Outputting the UAV cluster encirclement control trajectory. The method of the present invention learns from the leader-follower interaction relationship in the opportunistic hunting strategy of wolves, and under the condition of limited detection and communication range, by enhancing the interaction of heterogeneous nodes, it maintains the connectivity and stability of cluster encirclement control under limited perception.

The invention discloses a radiometer ground detection system and method. The system is used for testing an on-satellite receiver unit and an on-satellite digital control unit on the ground. The systemincludes a temperature measurement data input module (5), an analog temperature measurement data output module (6), an output module (7) of each channel voltage of an analog receiver and a data processing module (8). The temperature measurement data input module (5) is used for reading temperature measurement data output by the on-satellite receiver unit; the analog temperature measurement data output module (6) is used for simulating a temperature measurement circuit to output periodic data to the on-satellite digital control unit; and the output module (7) of each channel voltage of the analog receiver is used for simulating functions of the analog receiver to output cold air, over-the-ground and observation level signals of each channel for the on-satellite digital control unit to perform collection and testing. The data processing module (8) is used for receiving a data packet sent by the on-satellite digital control unit, and sending the data packet to an upper computer. The system has the advantages of being small in size, multiple in functions and high in universality.