Transmitter Delay Calibration for Phase-Amplitude Synchronization
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Solution Overview
Problem
Conventional transmitters face challenges in accurately transmitting and calibrating phase and amplitude signals due to delay mismatches between modulation paths, leading to asynchronous signals that affect the generation of radio frequency signals.
Innovation Solution
A transmitter design incorporating a phase modulation path, an amplitude modulation path, a control unit, and a calibration unit that introduces delays to synchronize phase and amplitude signals by using calibration signals during the calibration mode and adjusting delay factors to ensure synchronous transmission in normal mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If delay factors are introduced to synchronize phase and amplitude signals, then signal synchronization is improved, but device complexity increases
Solution Approach 1:
The control unit continuously monitors the phase and amplitude signals and dynamically adjusts the delay factors based on detected synchronization status. This feedback mechanism ensures reliable signal synchronization while automating the complexity management, as the system self-regulates without requiring complex manual intervention structures.
Solution Approach 2:
The calibration unit performs preliminary delay calibration before normal operation, establishing optimal delay factors in advance. This preliminary action ensures that when the transmitter operates in normal mode, the signals are already synchronized, reducing the need for complex real-time adjustment mechanisms during operation.
2Measurement precision
If calibration mode is implemented to adjust delay factors, then signal accuracy is improved, but operation time increases
Solution Approach 1:
The calibration unit performs delay factor adjustment during an initial calibration phase before normal transmission begins. By completing the time-consuming calibration process in advance, the system achieves high signal accuracy without repeatedly losing time during normal operation, as the delay factors are pre-optimized for subsequent use.
Solution Approach 2:
The system implements calibration at specific intervals or under specific conditions rather than continuously. The control unit can switch between calibration mode and normal mode, performing accuracy adjustments periodically when needed, thus balancing signal precision requirements with operational time efficiency.
Data Source
AI summary
A transmitter for transmitting and calibrating a phase signal and an amplitude signal. The transmitter comprises a phase modulation path, an amplitude modulation path, and a control unit. The phase modulation path transmits the phase signal. The amplitude modulation path transmits the amplitude signal. The control unit delays the signal on at least one of the phase modulation path and the amplitude modulation.