CN-121980748-A - Multi-star collaborative observation capability semi-physical simulation verification system and method

CN121980748ACN 121980748 ACN121980748 ACN 121980748ACN-121980748-A

Abstract

The invention relates to a semi-physical simulation verification system and method for multi-satellite collaborative observation capability, which are characterized in that software (such as multi-satellite data fusion software, on-satellite task planning software, on-satellite network routing software and the like) related to multi-satellite collaborative capability in N types of satellites needing simulation verification is packaged by adopting a container technology to form a digital prototype of each type of satellite, so that the expansibility of the number of satellites in simulation can be improved, the cost of the simulation verification can be obviously reduced, higher simulation confidence is reserved, the single machine related to the multi-satellite collaborative capability on the multi-type satellites is accessed into a simulation system in the form of a physical or digital single machine, and the simulation verification is carried out on the collaborative capability of the multi-satellite under the unified scheduling and management of the simulation system. The invention can obviously improve the constellation scale of the simulation system supporting verification and improve the expansibility of simulation.

Inventors

LU ZHENG
YIN KAIFENG
XIAO FAN
CHENG KAN
WANG GUANGYUAN
LIAO YUAN
DU JIE

Assignees

中国空间技术研究院

Dates

Publication Date: 20260505
Application Date: 20251212

Claims (10)

1. The multi-satellite collaborative observation capability semi-physical simulation verification system is characterized by comprising a simulation scene configuration and driving module, a data statistics module, a digital prototype and a physical prototype, wherein the number of types of satellites participating in simulation is N, N is more than or equal to 1, the number of each type of satellites is M 1 、M 2 、…、M N , each type of satellites at least selects one on-board single machine or an electrical product running multi-satellite collaborative software to be connected into the simulation verification system in the form of the physical prototype, and at least one digital prototype simulating the on-board single machine or the electrical product, the number of the physical prototype of each type of satellites connected into the simulation system is marked as C 1 、C 2 、…、C N , and the number of the digital prototypes required by each type of satellites in the simulation system is M 1 -C 1 、M 2 -C 2 、…、M N -C N ; The simulation scene configuration and driving module is used for configuring a verification scene, driving a plurality of simulation observation targets to run according to a preset track in the verification scene, generating track position information of each satellite in real time according to track dynamics, and providing track information of the targets and track position information of all satellites to each physical model machine and each digital model machine; Each physical model machine and each digital model machine respectively generate a corresponding task planning scheme and a network transmission scheme according to the target track information and the track position information of the satellites, wherein the task planning scheme agrees with the mapping relation between different satellites and targets under different time windows, and simulates the collaborative observation and relay tracking of the targets by a plurality of satellites according to the task planning scheme; And the data statistics module is used for carrying out statistics analysis on the tracked target capacity, the target loss rate and the target tracking error index according to the states of each physical prototype and each digital prototype for observing and tracking the target, so as to finish verification of multi-star coordination capability.
2. The multi-star collaborative observation capability semi-physical simulation verification system according to claim 1, wherein all digital prototypes and physical prototypes are simulated according to the same fixed simulation step size.
3. The multi-star collaborative observation capability semi-physical simulation verification system according to claim 1, wherein software related to multi-star collaborative capability in the digital prototype is packaged by a container.
4. The multi-star collaborative observation capability semi-physical simulation verification system according to claim 1, wherein the software related to multi-star collaborative capability is on-board software related to multi-star interconnection, interoperation and information fusion processing, task planning and network routing.
5. The multi-satellite collaborative observability semi-physical simulation verification system of claim 1, wherein the satellite types include earth-looking satellites and space-looking satellites.
6. The multi-star collaborative observation capability semi-physical simulation verification system according to claim 1, wherein the multi-star collaborative capability is calculated by the following method: And respectively scoring the tracking target capacity, the target loss rate and the target tracking error, giving corresponding weights, and carrying out weighted summation operation on the scores of the tracking target capacity, the target loss rate and the target tracking error to obtain a multi-star coordination capacity value, wherein the larger the multi-star coordination capacity value is, the stronger the multi-star coordination capacity is.
7. The multi-star collaborative observation capability semi-physical simulation verification system according to claim 1, wherein the more the tracking target capacity is, the higher the corresponding score is, the lower the target loss rate is, the higher the corresponding score is, and the smaller the target tracking error is, the higher the corresponding score is.
8. A multi-star collaborative observation capability semi-physical simulation verification method is characterized by comprising the following steps: s1, at least one satellite single machine or electric products running multi-satellite collaborative software is selected for each type of satellites participating in collaborative observation, and the satellite single machine or electric products are accessed into a simulation verification system in a physical model machine mode; s2, simulating the single-machine or electric product on the satellite in the step S1 by adopting a digital prototype, and packaging software related to the multi-satellite cooperative capacity and all dependence items thereof by adopting a container technology; S3, configuring a verification scene, and driving all digital prototypes and physical prototypes in the scene to operate, wherein the digital prototypes and the physical prototypes comprise unified clocks and external environment excitation required by each physical prototype and each digital prototype, and in the verification scene, simulating an observation target to operate according to a preset track and providing track information of the target and track position information of all satellites for each physical prototype and each digital prototype; s4, each physical prototype and each digital prototype respectively generate a corresponding task planning scheme and a network transmission scheme according to the target track information and the track position information of the satellites, wherein the task planning scheme agrees with the mapping relation between different satellites and targets under different time windows, and simulates the collaborative observation and relay tracking of the targets by a plurality of satellites according to the task planning scheme; S5, according to the states of each physical prototype and each digital prototype for observing and tracking the target, carrying out statistical analysis on the tracked target capacity, the target loss rate and the target tracking error index, and completing verification on multi-star coordination capability.
9. The multi-star collaborative observation capability semi-physical simulation verification method according to claim 8, wherein the multi-star collaborative capability is calculated by the following method: And respectively scoring the tracking target capacity, the target loss rate and the target tracking error, giving corresponding weights, and carrying out weighted summation operation on the scores of the tracking target capacity, the target loss rate and the target tracking error to obtain a multi-star coordination capacity value, wherein the larger the multi-star coordination capacity value is, the stronger the multi-star coordination capacity is.
10. The multi-star collaborative observation capability semi-physical simulation verification method according to claim 8, wherein the more the tracking target capacity is, the higher the corresponding score is, the lower the target loss rate is, the higher the corresponding score is, and the smaller the target tracking error is, the higher the corresponding score is.

Description

Multi-star collaborative observation capability semi-physical simulation verification system and method Technical Field The invention belongs to the field of spacecraft system simulation, and relates to a semi-physical simulation verification system and method for multi-star collaborative observation capability. Background With the increase of the number of on-orbit spacecrafts and the increasing complexity of task scenes, the application scenes of multi-star collaborative tunneling tasks are increasing. The hypersonic speed and ballistic missile tracking Space-based Sensor system (Hypersonic and Ballistic TRACKING SPACE Sensor, HBTSS) which is developed by Space X company in the United states, namely a star chain system, a Lo-Mars company and a Noger company together, all adopt a multi-star cooperative mode to complete tasks, such as relay tracking of multiple stars and the like through cooperative task planning and information fusion among the multiple stars. The multi-star collaborative capability is analyzed by adopting a system simulation mode, and the multi-star collaborative capability is mainly divided into two types of digital simulation verification and semi-physical simulation verification. At present, the semi-physical simulation verification mainly adopts a single machine (such as finishing multi-star data fusion, multi-star task planning function or network routing function) or an electrical product thereof which is related to multi-star cooperation capability in a single machine on a star to be simultaneously accessed into a simulation system, and performs simulation analysis on the capability of carrying out tasks through multi-star cooperation under the unified scheduling management of the simulation system. However, with the rapid increase of the number of satellites cooperatively participating in a task, the high cost of the on-board single machine becomes a bottleneck for limiting the simulation, and meanwhile, the connection relationship among a plurality of physical single machines is very complex, so that the expandability of the simulation method is greatly limited. Disclosure of Invention The invention solves the technical problems of overcoming the defects of the prior art, and provides the semi-physical simulation verification system and method with multi-satellite collaborative observation capability, which effectively reduce the complexity of physical connection when the number of satellites is large, reduce the cost of simulation verification, ensure the simulation confidence and greatly improve the expansibility of the simulation verification system. The invention provides a multi-satellite collaborative observation capability simulation verification system based on a container technology, which comprises a simulation scene configuration and driving module, a data statistics module, a digital prototype and a physical prototype, wherein the number of types involved in simulation is N, N is more than or equal to 1, the number of satellites of each type is M 1、M2、…、MN, at least one satellite single machine or electric product running multi-satellite collaborative software is selected by each type of satellite to be accessed into the simulation verification system in the form of the physical prototype, and at least one digital prototype simulating the satellite single machine or electric product is recorded as C 1、C2、…、CN, and the number of the digital prototype required by each type of satellite in the simulation system is M 1-C1、M2-C2、…、MN-CN; The simulation scene configuration and driving module is used for configuring a verification scene, driving a plurality of simulation observation targets to run according to a preset track in the verification scene, providing track information of the targets and track position information of all satellites for each physical model machine and each digital model machine, generating a corresponding task planning scheme and a network transmission scheme according to the track information of the targets and the track information of the satellites, wherein the task planning scheme agrees with different mapping relations between the satellites and the targets and the network routing scheme under different time windows, simulates collaborative observation, relay tracking and network topology of the plurality of satellites on the targets according to the task planning scheme and the network transmission scheme, and carrying out statistical analysis on tracking target capacity, target loss rate and target tracking error indexes according to the states of each physical model machine and each digital model machine to finish verification of multi-satellite collaborative capability. Preferably, all digital prototypes and physical prototypes are simulated in the same fixed simulation step size. Preferably, software related to multi-star coordination capability in the digital prototype is packaged by a container. Preferably, the software related to the mu