Abstract: A space-based radar system is provided that includes a constellation of low Earth orbit (LEO) satellites forming a distributed radar network that provides seamless global radar coverage. Each LEO satellite includes a phased array antenna system that enables electronic beam steering. The LEO satellites leverage advanced digital beamforming (DBF) technologies to dynamically steer and shape beams in real time, improving resolution, coverage, and adaptability. The LEO satellites may communicate with each other and ground stations using inter-satellite links (ISLs), which allows the satellites to share data with each other in real-time or near-real-time. As such, satellites can process data from other satellites and fuse it to improve coverage and target tracking. The constellation of LEO satellites can lock multi-beam phased-array radars onto targets from multiple satellites, which allows the system to paint a target from multiple directions with long-wavelength radar from multiple satellites at the same time.

Abstract: The disclosed technology is generally directed to a coaxial cable that includes an inner central conductor, an insulator layer disposed around the external wall of the inner central conductor, a shielding conductor disposed around the insulator layer, and an outer jacket surrounding the shielding conductor. The inner central conductor has an external wall and an internal wall defining an axial cavity extending along a longitudinal axis of the inner central conductor. The axial cavity reduces the material volume of the inner central conductor relative to a solid inner conductor of equivalent outer diameter, thereby reducing weight and/or cost of the coaxial cable.

Abstract: The disclosed technology is generally directed to a coaxial cable that includes an inner central conductor, an insulator layer, a shielding conductor, and an outer jacket. The inner central conductor defines an axial cavity extending along a longitudinal axis of the inner central conductor. Inclusion of the axial cavity in the inner central conductor may reduce the weight and/or the cost of the coaxial cable in comparison to traditional coaxial cables that implement a solid inner central conductor. In some, but not all, implementations, an insulative core may be disposed or formed within the axial cavity. The insulative core may provide internal structural support to the inner central conductor while reducing the metal mass of the inner central conductor. The insulative core may also reduce the weight and/or the cost of the coaxial cable and also provide mechanical stability to resist conductor deformation during bending.

Abstract: The disclosed technology is generally directed to a method for simulating orbit propagation of a satellite system including a constellation of satellites. In one example of the technology, the method may include receiving an input indicating whether to simulate the orbit propagation for a single satellite or a plurality of satellites of the constellation, and a set of orbital parameters associated with each satellite. Based on the input and the set of orbital parameters: simulating the orbit propagation of the single satellite or the plurality of satellites to iteratively determine a velocity and a position of the single satellite or the plurality of satellites. The method may include iteratively storing the velocity and the position in a buffer and dynamically rendering a user interface to display a visualization representing the orbit propagation of one of the single satellite and the plurality of satellites.

Abstract: The disclosed technology is generally directed to a method for simulating light pollution by a satellite system including at least one satellite. In one example of the technology, the method may include receiving orientation and solar panel parameters associated with the satellite, a position of the Earth with respect to the Sun, importing a database including multiple point of interests (POIs) on the Earth, and determining a surface roughness parameter of the satellite using a Gaussian distribution model. Based on the orientation and solar panel parameters, the position of the Earth, and the surface roughness parameter: simulating the light pollution by the satellite to iteratively determine the light pollution at the POIs. The method may include storing the light pollution determined at the POIs in a buffer and dynamically rendering a user interface to display a visualization representing the light pollution by the satellite at the POIs.

Abstract: The disclosed technology is generally directed to a method for provisioning data in a fifth generation (5G) communication network. In one example of the technology, the method may include storing user data profiles associated with the 5G communication network in a centralized communication server, determining a satellite that provisions 5G communication network over a region on the Earth during a time interval, and identifying a set of user equipment (UE) in the region. The method may include retrieving a set of user data profiles corresponding to the set of UE from the centralized communication server and determining a gateway that is in communication with the satellite. The method may include provisioning the set of user data profiles from the centralized communication server to the satellite via the gateway before the satellite reaches the region, thereby enabling the satellite to provision the 5G communication network to the set of UE.

Abstract: The disclosed technology is generally directed to a method for simulating power analysis of a satellite system comprising at least one satellite. In one example of the technology, the method may include receiving at least one of orientation parameters, solar panel parameters, and peak values associated with the satellite, and a position of the Earth with respect to the Sun and determining an amount of power generated by the satellite. The method may include receiving power consumption data of components of the satellite in a plurality of modes of operation and determining an amount of power consumed by the satellite. The method may include simulating power analysis, based on the amounts of power generated and consumed, to determine an amount of power stored by the satellite and repeating aforementioned steps to iteratively determine the amounts of power generated, consumed, and stored as the satellite traverses through a respective orbit.

Abstract: The disclosed technology is generally directed to a method for determining link budget of a satellite system including at least one satellite. In one example of the technology, the method may include receiving orientation and antenna parameters associated with the satellite, and user equipment parameters associated with multiple user equipment within coverage area of the satellite and environmental parameters. The method may include selecting at least one of a plurality of analysis techniques to process the orientation, antenna, user equipment, and environmental parameters and simulating, via a parallel processor, link budgets of the satellite for the multiple user equipment in parallel using the selected analysis technique to determine link budgets of the satellite for each user equipment. The method may include storing the link budgets in a buffer and dynamically rendering a user interface to display a visualization representing the link budgets in the coverage area of the satellite.

Abstract: The disclosed technology is generally directed to a method for controlling a satellite system comprising at least one satellite. The method may include receiving and processing a set of control parameters associated with an orientation of the at least one satellite via a classic control model to generate a set of actions to control the orientation of the at least one satellite and storing the set of actions as data in a buffer. The processing and storing are iteratively repeated until the data stored in the buffer exceeds a threshold. When the data stored in the buffer exceeds the threshold, the method may further include iteratively implementing, based on each of the set of control parameters and the data stored in the buffer, the machine learning model to control the orientation of the at least one satellite to stabilize the at least one satellite.

Abstract: The disclosed technology is generally directed to a wireless device. In one example of the technology, the wireless device includes a network modem and a controller. The network modem may connect with a first network in a first network mode and connect with a second network in a second network mode. The controller may control a connected state and an inactive state of the first network mode and the second network mode. The controller may switch the first network mode from the inactive state to the connected state when the second network mode is in the inactive state and switch the second network mode from the inactive state to the connected state when the first network mode is in the inactive state.

Abstract: The disclosed technology is generally directed to a method for manufacturing a carbon fiber structure. In one example of the technology, the method may include mounting inner mold segments on a rod. The rod may correspond to one of: a continuous threaded rod and a cogged center rod. A first motor may spin the rod to linearly move the inner mold segments on the rod. While the inner mold segments are moving linearly, a second motor may spin a set of carbon fiber tows mounted on a mandrel around the inner mold segments to wind a set of carbon fiber threads of the set of carbon fiber tows around the inner mold segments. Further, a set of outer mold segments may compress the wound carbon fiber threads around the inner mold segments by applying heat and pressure to manufacture the carbon fiber structure.

Abstract: The disclosed technology is generally directed to a method for controlling a satellite. In one example of the technology, the method may include receiving a set of parameters associated with an orientation of the satellite and executing a reinforcement learning model to control the orientation of the satellite to stabilize the satellite based on each of the set of parameters. The executing of the reinforcement learning model includes predicting a set of actions to be executed by the satellite to control the orientation of the satellite based on each of the set of parameters, executing the set of actions, and predicting an outcome of the executing of the set of actions to generate a set of rewards. The method may further include controlling the orientation of the satellite to stabilize the satellite based on the set of actions and the set of rewards.

Abstract: A method for controlling a satellite using magnetics only, and a control system for implementing the method. The method involves assessing a current attitude of a satellite at a current time and location using magnetometry; setting a desired attitude for the satellite at a future time in a future location; developing a set of waypoints that provide the attitude of the satellite at plural locations between the current location and the future location; and actuating a plurality of magnetorquers to induce torques that achieve a small as possible difference between the attitude of the satellite between each waypoint and achieving the desired attitude at the future location, the magnetorquers being the sole means of inducing rotation of the satellite to attain the desired attitude.

Abstract: The disclosed technology is generally directed to a method for communication by a user equipment (UE) and a network node of a non-terrestrial network. In one example of the technology, the method may include receiving by the UE a configuration message from the network node and decoding by the UE the configuration message to obtain a delay parameter. The method further includes determining a delay value based on the delay parameter and a set of attributes associated with the UE. The set of attributes includes at least one attribute uniquely identifying the UE. The method further includes generating a Physical Random Access Channel (PRACH) signal at the UE and delaying transmission of the PRACH signal by the UE to the network node based on the delay value. The PRACH signal is processible by the network node to establish a connection between the UE and the network node.

Abstract: One aspect of the disclosed technology is generally directed to rapid acquisition of additional resources for a satellite communications service that is provided to an entity.

Abstract: One aspect of the disclosed technology is generally directed to dynamically reconfiguring a subset of satellites of a constellation of satellites.

Abstract: The disclosed technology is generally directed to a system for detecting forest fires. The system may include a plurality of sensor devices in communication with each other, and a plurality of satellites in communication with at least one of the plurality of sensor devices via non-line-of-sight (NLOS) communication. Each of the sensor devices may include sensor(s) configured to measure a physical parameter; a processor that detects a condition indicative of a forest fire based on the measured physical parameter and generate a signal when the condition indicative of the forest fire is detected; and a communication interface and an antenna that communicates signals modulated with data indicating that the condition indicative of the forest fire has been detected. Each of the satellites may include a phased array antenna system that is configured to receive the signals that indicate that the condition indicative of the forest fire has been detected.

Abstract: A structural element, such as for use in conjunction with a satellite, may include one or more thin film solar cells (108-i), which are supported on a substrate (102), and a plurality of thin film antenna elements (110-i), which are supported on a carrier layer (104). The substrate (102) functions as a ground plane for the antenna elements (110-i).

Abstract: A satellite includes a structural element that is deformable during a collision with space object(s). The structural element includes a first side, a second side spaced apart from the first side to define an interior portion between the first side and the second side. and at least one material disposed within the interior portion. The first side includes a first layer of material with payload element(s) disposed thereon, and the second side includes a second layer of material. The material disposed within the interior portion is designed to absorb energy over time during a collision process with each space object. The first layer, the second layer and/or the material disposed within the interior portion are configured to capture one or more space objects upon collision with the satellite.