A method of determining a current orientation of an antenna compared to a desired orientation is presented. In the method, current orientation data indicating a current orientation of the antenna is generated in circuitry mounted to the antenna. Data indicating a desired orientation for the antenna at the geographical location of the antenna is received. The desired orientation data is compared with the current orientation data. Based on this comparison, alignment information is generated which indicates whether the current orientation of the antenna aligns with the desired orientation of the antenna.

Antenna orientation determination

The invention belongs to the technical field of inertial navigation and also provides a strapdown inertial navigation initial alignment method for an antenna tracking and stabilizing platform, which aims to further improve the precision and the speed of initial alignment of a strapdown inertial navigation system A kalman filter state equation with a speed error as a state variable and an observation equation with a speed error as an observation value are established, and a carrier misalignment angle is estimated by a kalman filter technology and is fed back into the system for implementing initial alignment of the system The strapdown inertial navigation initial alignment method has the main advantages that under a condition that a conventional hardware structure of the system is not changed, the initial alignment of a rotating base is implemented by fully utilizing the structural characteristic of the antenna tracking and stabilizing platform, so that the observability of the strapdown inertial navigation system is improved, and furthermore, the precision of the initial alignment of the strapdown inertial navigation system is effectively improved

Strapdown inertial navigation initial alignment method for antenna tracking and stabilizing platform

A method of receiving a satellite signal using a satellite dish connected to a receiver, the method includes a peak identification stage including automatically sweeping the satellite dish to identify peaks of satellite signals received by the receiver having a center frequency matching the center frequency of the satellite signal, a peak evaluation stage including automatically evaluating one or more said peaks by determining the bandwidth thereof and choosing the peak having a bandwidth matching the bandwidth of the satellite signal, and a signal strength maximizing stage including automatically sweeping the satellite dish until the signal strength of a satellite signal having said bandwidth is maximized.

Antenna positioning system with automated skewed positioning

PURPOSE: An apparatus and a method for aligning a microwave antenna using a laser beam are provided to improve the operation efficiency by controlling exactly and easily the microwave antenna for interoffice trunk. CONSTITUTION: A laser beam emitting unit(20) is installed on microwave antennas(10A,10B) for interoffice trunk of one of two switching offices and emits a laser beam toward the microwave antennas(10A,10B) for interoffice trunk of the other switching office. A trigger fixing unit(30A) fixes the laser beam emitting unit(20) on a center of the microwave antennas(10A,10B) for interoffice trunk of the switching office so as to direct the laser beam emitting unit(20) to the other switching office. A laser beam detecting unit(40) is installed on the microwave antennas(10A,10B) for interoffice trunk of the other switching office and measures and confirms the receipt and position of a laser beam emitted from the laser beam emitting unit(20).

Alignment apparatus and method for microwave antenna using laser beam

It is disclosed an antenna system drivable in at least one degree of freedom, comprising a target value provider configured to provide at least one target value, a data-bus configured to relay the at least one target value, at least one sensor unit configured to provide a current position in the at least one degree of freedom via the data-bus to the target value provider, and at least one antenna drive unit configured to drive the drivable antenna in the at least one degree of freedom according to the at least one target value.

Antenna system driven by intelligent components communicating via data-bus, and method and computer program therefore

An antenna arrangement includes an antenna reflector (10), a transceiver element (11) and a signal detection unit (12) having a signal converter (121-122) and a computing unit (123) for generating in response to incoming signals control signals for controlling the alignment of the antenna reflector (10) with a target object. The signal converter (121-122) is adapted to reduce its bandwidth automatically and incrementally from a requisite maximum frequency range to a narrow band frequency range. Changes in the direction of the antenna reflector are detected through the medium of a movement detection unit (13) that includes 3d-sensors (131, 132, 133). Mechanical control of the alignment direction of the antenna reflector (10) is effected with the aid of a drive unit (15).

Mats Nilsson

Papers

An antenna device