Signal Processing Module Timing Synchronization for Estimation Accuracy
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Solution Overview
Problem
Existing signal processing techniques face challenges in accurately recovering information from received signals due to interference and estimation errors, particularly when the signal-to-noise ratio varies across antennas, limiting the effectiveness of antenna diversity systems.
Innovation Solution
A receiving apparatus and method that processes multiple input signals with different starting timings, utilizing a selector and processing module to combine processed signals and reduce estimation errors by leveraging the memory property of signal processing methods, thereby enhancing signal estimation accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If antenna diversity technique is used to receive signals from multiple antennas, then signal estimation accuracy is improved through independent channel fading effects, but system performance does not improve when one antenna has significantly higher SNR than others
Solution Approach 1:
The patent implements dynamic signal processing by introducing different time delays for signals from different antennas. The processing module dynamically adjusts the starting timing of signal processing based on the specific antenna and signal conditions, allowing the system to adapt to varying SNR conditions across antennas rather than using a static processing approach
Solution Approach 2:
The patent changes the processing parameter of starting timing for different antennas. By setting different starting timings (time delays) for processing signals from different antennas, the system creates parameter diversity that enables improved performance even when one antenna has dominant SNR, as the processing results are combined with temporal differentiation
2Device complexity
If conventional signal processing is used to extract information from received signals, then processing simplicity is maintained, but signal estimation accuracy deteriorates due to interference and estimation errors
Solution Approach 1:
The patent combines processing results from multiple antennas with different starting timings to generate the final output signal. This merging approach integrates multiple processed signals that have been differentiated by time delays, thereby improving estimation accuracy through combination while keeping individual processing operations relatively simple
Solution Approach 2:
The patent applies preliminary signal processing to each antenna's received signal before combination, where each signal undergoes processing with a predetermined starting timing. This preliminary action with differentiated timing parameters prepares the signals in a way that reduces interference and estimation errors before they are combined
Data Source
AI summary
A receiving apparatus includes a receiving module and a processing module. The receiving module is used for receiving a plurality of received signals and selecting the received signals to generate a plurality of input signals. The processing module is used for processing the input signals to generate an output signal.