A carrier phase adjustment method and apparatus, and a transmitter
CN117938338BActive Publication Date: 2026-08-28TELINK SEMICON SHANGHAI
Patent Information
- Application Number
- CN202410098096.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2044-01-23
AI Technical Summary
Technical Problem
[0004]现有的发射机方案中，例如可以在锁相环(Phase-locked loops，PLL)的输出端乘以乘法器的方法以达到调整最终输出载波相位的目的，然而该方案需要添加两路处理电路，由于这里的处理电路通常包括有数字模拟转换器(Digital to analog converter，DAC)，以及相应的滤波器(Filter)和混频器(Mixer)等器件，使得整机的功耗和面积都会比较大
Benefits of technology
[0032]采用上述载波相位调整方法和装置、以及发射机，响应于相位调整操作，可以首先确定在相位调整操作下需要调整的目标相位，而后基于数字基带生成方式生成与目标相位匹配的两个数字调制信号，而后将两个数字调制信号分别施加至载波相位调整装置中的第一累加器和主振荡器的情况下，基于电压控制振荡器的输出端至相位检测模组的输入端的反馈链路，确定电压控制振荡器最终输出的调整后相位。本公开一旦确定所需调整的目标相位，将基于数字基带生成方式生成对应的两个数字调制信号，这两个数字调制信号可以激发载波相位调整装置中各个组件进行相应的工作，进而可以输出调整后相位，该调整后相位与目标相位一致，也即，不同的数字调制信号将对应输出不同的调整后相位，相位调整的灵活度更高，且无需附加过多的处理电路，使得整机功耗及面积较为合理，适用性更强。
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117938338B_ABST
Abstract
The present disclosure provides a carrier phase adjustment method and device, and a transmitter, wherein the method is applied to a carrier phase adjustment device, the device comprises a main oscillator, a phase detection module, a loop filter, a first accumulator and a voltage controlled oscillator which are connected in sequence; in response to a phase adjustment operation, a target phase to be adjusted under the phase adjustment operation is obtained; two digital modulation signals matching the target phase are generated based on a digital baseband generation mode; under the condition that the two digital modulation signals are applied to the first accumulator and the main oscillator respectively, based on a feedback link from an output end of the voltage controlled oscillator to an input end of the phase detection module, an adjusted phase finally output by the voltage controlled oscillator is determined. The present disclosure realizes flexible adjustment of the carrier phase through the digital baseband generation mode, the overall power consumption and area are reasonable, and the applicability is stronger.
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Phase modulation device and wireless communication device
CN101305570A
A system and method of generating and broadcasting ultra wide band navigation signals
CN111948681A