Satellite Antenna Alignment Using Database Offsets

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Solution Overview

Problem

Current satellite broadcast systems face challenges in aligning antennas precisely to receive signals from multiple satellites and new frequency bands, leading to inefficiencies and signal loss due to imprecise antenna positioning.

Innovation Solution

A method and system that utilize an alignment mechanism with adjustments in azimuth, elevation, and skew, coupled with a database that calculates offsets based on satellite configuration data, polarization, and frequency information to accurately position the antenna reflector, using a tool with a tuner/demodulator and processor to verify signal reception and optimize alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional alignment methods are used for satellite antennas, then the alignment process is simple, but the alignment precision is insufficient leading to signal loss

Engineering Contradiction:
Improvealignment precisionVSAvoidalignment system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements feedback by using signal quality measurements from the antenna to automatically adjust alignment parameters. The system measures signal strength and polarization accuracy, then feeds this information back to the alignment mechanism to iteratively optimize the antenna position and orientation, achieving high precision without manual intervention.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces traditional mechanical alignment methods with an automated system that uses electronic signal processing and computational algorithms. Instead of relying on manual mechanical adjustments, the system uses processors to calculate optimal alignment parameters and controls actuators to position the antenna, substituting mechanical intuition with electronic precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the antenna is aligned for one satellite frequency band, then the alignment is simple, but it cannot receive signals from multiple satellites and frequency bands

Engineering Contradiction:
Improvemulti-satellite reception capabilityVSAvoidalignment mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent designs the alignment mechanism to perform multiple functions: it can align the antenna for different satellites, different frequency bands (Ku and Ka), and different polarization orientations. The system uses a universal alignment procedure that adapts to various reception scenarios, allowing a single mechanism to handle diverse satellite communication requirements without requiring separate alignment systems for each case.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements dynamic adaptability by allowing the alignment parameters to be adjusted in real-time based on which satellite and frequency band is being received. The system can dynamically change polarization angles, elevation, and azimuth settings to optimize reception for different satellites, making the alignment mechanism flexible rather than fixed.

Inventive Principle:
Principle #15Dynamics

3Reliability

If manual alignment adjustment is used, then the system is easy to operate, but the alignment accuracy and signal reception quality are insufficient

Engineering Contradiction:
Improvesignal reception qualityVSAvoidalignment operation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent implements self-service alignment by enabling the system to automatically perform the alignment process without requiring skilled operators. The alignment mechanism uses built-in signal quality sensors and automated control algorithms to adjust its own position and orientation, making the system self-aligning and eliminating the need for manual intervention while ensuring consistent high-quality alignment results.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS8106842B2Ka/Ku antenna alignment
Publication Date: 2012.01.31 DIRECTV LLC
  • US8106842B2 patent drawing
  • US8106842B2 patent drawing
  • US8106842B2 patent drawing

AI summary

A method, apparatus and system for aligning an antenna reflector with satellites in a satellite configuration. A system in accordance with the present invention comprises an alignment mechanism, coupled to the reflector, wherein the alignment mechanism comprises adjustments in azimuth, elevation, and skew, wherein the alignment mechanism is used to provide a first alignment to the satellite configuration, and a tool, used to access a database, wherein the database, comprises data related to satellite configuration positional data, including a position of at least one satellite in the satellite configuration at a given point in time, data related to the antenna, including at least data related to an alignment mechanism coupled to the antenna, data related to polarizations and frequencies of signals being transmitted by the satellite configuration, and data related to the geoposition of the antenna being aligned, wherein the database calculates at least one offset for the alignment of the reflector, wherein the at least one offset is used to reposition the antenna using the alignment mechanism.