2 results about "Optical power budget" patented technology

The application discloses a kind of based on low-orbit giant constellation dynamic inter-satellite communication visibility calculation method, comprising the following steps: obtaining the latest TLE ephemeris data of two satellites under a certain constellation, based on TLE ephemeris data and specific epoch, the spatial position of two satellites is calculated using SGP4 orbit prediction model;Then the inter-satellite line-of-sight visibility between two satellites is calculated, and the result is characterized as a Boolean quantity;Utilize the optical power budget function based on inter-satellite laser link establishment, carry out received optical power budget;The azimuth and elevation of communication antenna under satellite body coordinate system are calculated;Finally, the visibility result of two satellites is calculated, the specific communication antenna number of satellite is determined, and the constellation inter-satellite visibility matrix is established.The application discloses a kind of based on low-orbit giant constellation dynamic inter-satellite communication visibility calculation method, constellation scale and calculation speed have higher flexibility and computing performance, inter-satellite visibility calculation is more in line with actual satellite communication scene.

The present disclosure discloses a signal processing device, system and method, comprising: a first component and a second component; wherein the first component is configured to perform reflection broadening processing on the emitted initial optical signal to obtain a broadened optical signal; the second component is arranged in the optical signal transmission path of the first component and is configured to perform branching processing on the received broadened optical signal, and perform focusing processing on each optical signal after branching processing, and parallelly transmit each optical signal obtained by focusing processing to a corresponding terminal device; the reflection broadening, branching, focusing and parallel transmission of the optical signal are realized by the signal processing device, the power performance of the uplink optical channel is effectively improved, the demand for uplink optical power budget is reduced, and the device and network costs are further reduced.