Direction of arrival estimation using circular vector array
The Direction of Arrival Estimation (DOA) has drawn increasing attention nowadays. Large percentages of the DOA estimation researches are focused on the Scalar Circular Array (SCA), mainly targeting at those signals with low grazing angels and vertical polarization. In this report, a new co...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/53380 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The Direction of Arrival Estimation (DOA) has drawn increasing attention nowadays.
Large percentages of the DOA estimation researches are focused on the Scalar
Circular Array (SCA), mainly targeting at those signals with low grazing angels and
vertical polarization. In this report, a new concept of Vector Circular Array (VCA) is
proposed. VCA is mainly targeting at those signals with high grazing angles. The
main objective of this report is to analyze and verify the performance of the VCA on
DOA Estimation.
The Vector Circular Array was designed with 4 patch antennas and aimed to receive
the signal with frequency of 2.4GHz. Also, a 4-channle receiver was designed to
verify the efficiency of the algorithm. A series of tests were conducted to make sure
that the antenna and receiver can perform properly. The signal is received by the
receiver, then digitalized through Analog-to-Digital Converter (ADC) and processed
by MATLAB programs for calibration and DOA estimation. The DOA estimation is
achieved through a joint algorithm based on a popular high-resolution estimation
method. A few measurements were conducted to make sure the receiver and the
algorithm can estimate the DOA with proper accuracy. |
|---|