SWRZ099B April 2020 – March 2022 AWR6843AOP
Inter-channel mismatch variation across angle of arrival
AWR6843AOP ES2.0
The inter-channel gain and phase mismatch may vary significantly across different angles of arrival, leading to reduced accuracy of angle estimation (~8 deg error).
The inter-channel gain and phase mismatch is typically calibrated at a system level using an object (such as a corner reflector) at boresight. Due to the high variation across different angles of arrival, the customer may calibrate the inter-channel mismatch at multiple angles within the field of view. This can be compensated using DSP algorithms.