Radar Elevation Detection Using Dual Fan Lobes
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Solution Overview
Problem
Conventional radar systems require a large number of transmitting and/or receiving antennas to detect elevation angles, leading to high system complexity and cost, as well as increased processing complexity.
Innovation Solution
A radar system comprising two radar sensors arranged on a common carrier with a sensor offset, emitting fan-shaped localization radiation lobes with different angles of incidence, allowing for the detection of elevation angles with reduced complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple transmitting and/or receiving antennas are used to detect elevation angles, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines two radar sensors on a common carrier with different angle of incidence to achieve elevation angle detection. This merging approach replaces the conventional method requiring multiple transmitting and receiving antennas, thereby reducing device complexity while maintaining measurement precision for elevation angle detection.
Solution Approach 2:
The patent introduces a new dimension by using sensors with different angle of incidence rather than increasing the number of antennas in the same configuration. This dimensional change in the sensing approach allows elevation detection with fewer components, reducing system complexity while preserving measurement accuracy.
2Measurement precision
If multiple transmitting and/or receiving antennas are used to detect elevation angles, then measurement precision is improved, but processing complexity increases
Solution Approach 1:
By merging the functionality of multiple antennas into two radar sensors with different angle of incidence, the patent reduces the number of signals that need to be processed simultaneously. This combination simplifies the processing complexity while maintaining the capability to detect elevation angles with high precision.
3Measurement precision
If resolution of the system is improved, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent achieves improved system resolution by utilizing sensors with different angle of incidence, introducing a new dimensional approach to resolution enhancement. This method avoids the conventional path of increasing the number of antennas, thereby improving resolution without proportionally increasing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed radar system achieves precise detection of objects in space with lower development, manufacturing, and operating costs, while maintaining high resolution and update rates.
Implementation Method 1
a first localization radiation lobe can be generated by means of the first localization sensor and a second localization radiation lobe can be generated by means of the second localization sensor
Implementation Method 2
The azimuth angle of a reflected signal captured by the radar sensor can be detected via the position of the rotor
Data Source
AI summary
The invention relates to a radar system (100). A first localization radiation lobe (1.3) can be generated by means of a first localization sensor (1.1), and a second localization radiation lobe (10.3) can be generated by means of the second localization sensor (10.1). The localization radiation lobes (1.3, 10.3) are designed to have the shape of a fan with a respective main fan plane (1.4, 10.4) in each case. A first main fan plane (1.4) of the first localization radiation lobe (1.3) is arranged at a first angle of incidence (1.5) relative to an imaginary base plane (30) arranged parallel to a movement direction (3.7), and a second main fan plane (10.4) of the second localization radiation lobe (10.3) is arranged at a second angle of incidence (10.5) relative to the base plane (30), said first angle of incidence (1.5) and second angle of incidence (10.5) differing. The invention also relates to a method (800) for detecting an object (8) in space, wherein a reflection elevation angle (54) of the reflected localization signals (71.1, 71.2) is determined using the ratio of the signal offset (74) to the sensor offset (3.8).