Phased-Array Antenna Signal Acquisition via Binary Search

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Solution Overview

Problem

Existing signal receiving methods using phased-array antennas are inefficient due to sequential scanning, which prolongs the time required to receive signals and reduces the efficiency of signal acquisition.

Innovation Solution

A binary search method is employed to reduce the maximum scanning angle range of phased-array antennas based on signal power, dividing the angle range into symmetrical segments and adjusting the antenna's main lobe direction to optimize signal reception, thereby reducing the scanning angle range until a set value is reached.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If sequential scanning method is used to receive signals with phased-array antenna, then the scanning process is simple to implement, but the time required to receive signals is prolonged and signal acquisition efficiency is reduced

Engineering Contradiction:

Improvesignal acquisition efficiencyVSAvoidtime required to receive signals

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent segments the maximum scanning angle range into multiple reduced scanning angle ranges through binary search division. By dividing the angle range and systematically searching each segment, the method reduces the total number of scanning operations needed compared to sequential scanning of the entire range, thereby improving signal acquisition efficiency and reducing time loss.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If maximum scanning angle range is used for signal reception, then the coverage area is maximized, but the number of scanning operations increases and reception time is prolonged

Engineering Contradiction:

Improvescanning coverage rangeVSAvoidsignal reception speed

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent dynamically adjusts the scanning angle range based on signal power feedback. Starting with the maximum scanning angle range for comprehensive coverage, the system progressively reduces the range to reduced scanning angle ranges as the signal source is located, optimizing the balance between coverage and reception speed through adaptive binary search.

Inventive Principle:

Principle #15Dynamics

3Loss of time

If binary search method is employed to reduce scanning angle range, then the number of scanning operations is reduced and reception time is shortened, but the control complexity of antenna direction increases

Engineering Contradiction:

Improvesignal reception timeVSAvoidantenna direction control complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent implements feedback control by measuring signal power at different angle ranges and using this information to determine the next scanning range through binary search. The signal power measurements provide feedback that guides the systematic reduction of the scanning angle range, managing the control complexity through an organized search algorithm rather than random or exhaustive scanning.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11522288B2Signal receiving method and apparatus, and computer-readable storage medium and electronic device

Publication Date: 2022.12.06 BEIJING BOE TECH DEV CO LTD

AI summary

A signal receiving method and apparatus, a computer readable storage medium and an electronic device are disclosed. The signal receiving method includes: acquiring a maximum scanning angle range of a phased-array antenna; and reducing the maximum scanning angle range by a binary search method, based on power of signals received by the phased-array antenna, until a difference between a maximum and a minimum of a reduced scanning angle range is less than a set value; and using the reduced scanning angle range to receive a signal.