集成传感和通信使用随机补OTFS与减少干扰
Pavel Karpovich1,2, Tomasz P Zielinski1
1Institute of Telecommunications, AGH University of Krakow, Al. Mickiewicza 30, 30-059 Krakow, Poland.
Sensors (Basel, Switzerland)
|August 14, 2025
概括
这项研究优化了随机填充直角时间频率空间 (RP-OTFS) 调制,以减少高多普勒频道的干扰. 增强的波形改善了集成传感和通信系统的数据解调和雷达检测.
科学领域:
- 无线通信无线通信
- 信号处理 信号处理
- 雷达系统 雷达系统
背景情况:
- 在高多普勒通道中,直角时频空间 (OTFS) 调制是有效的,在高多普勒通道中,直角频率分割多重复合 (OFDM) 很难实现.
- 随机装OTFS (RP-OTFS) 为集成传感和通信系统 (ISAC) 提供了改进的通道状态信息 (CSI) 估计和雷达检测功能.
- RP-OTFS的一个关键限制是多普勒延迟 (DD) 网格内的显著载体间干扰 (ICI).
研究的目的:
- 通过减少飞行员对数据的干扰和数据载体干扰来优化RP-OTFS波形.
- 为了提高ISAC系统使用RP-OTFS调制的性能.
- 为不同的雷达应用和操作环境调查各种DDD网格配置.
主要方法:
- 通过干扰再分配和专门的DD网格配置,减少飞行员对数据的干扰.
- 通过推断CSI估计来减轻数据载体干扰.
- 通过模拟来评估性能,将拟议的ICI降低RP-OTFS与标准RP-OTFS,OFDM和零补丁OTFS进行比较.
主要成果:
- 拟议的方法显著减少RP-OTFS波形中的飞行员对数据和数据载体干扰.
- 与传统调制相比,ICI降低的RP-OTFS显示了较低的比特错误率 (BER).
- 增强的RP-OTFS实现了成功雷达检测的更高概率.
结论:
- 优化的RP-OTFS波形有效地减少干扰,提高ISAC系统的可靠性.
- 该研究提供了针对不同运行条件选择合适的DD电网参数的见解.
- 开发的ICI降低RP-OTFS在具有挑战性的无线环境中,为通信和传感任务提供了卓越的性能.
相关概念视频
Propagation of Uncertainty from Random Error
1.1K
An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
1.1K
Interference and Diffraction
45.9K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
45.9K
Interference: Path Lengths
1.4K
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
1.4K
Maximum Power Transfer
405
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
405
Propagation of Uncertainty from Systematic Error
884
The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this...
884
Random Sampling Method
12.3K
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest. Among the various sampling methods used by...
12.3K


