ID 原文 译文
25575 因此，本文提出一种高效的协作宽带压缩频谱检测方案。 Therefore, this paper proposed an efficient cooperative scheme of wideband compressed spectrum sensing．
25576 首先，推导了一种基于学习的稀疏度自适应预测模型。 Firstly, based on learning, a sparsity adaptive learning prediction model was derived．
25577 其次，设计了一种宽带频谱筛选算法。 Secondly, a wideband spectrum filtering algorithm is designed．
25578 最后，提出一种协作宽带压缩频谱检测方案。 Finally, a cooperative wideband compressed spectrum sensing scheme was proposed．
25579 仿真结果表明，自适应预测模型的拟合效果优于现有预测模型，并且所提检测方案也有效地降低了次用户采样率和频谱重构时延。 The simulation results show that the fitting effect of the adaptive prediction model are better than the existing prediction model, and the proposed sensing scheme effectively reduces the sampling rate and spectrum reconstruction delay of secondary users．
25580 针对小站信号带宽大于主站信号的新非对称成对载波多址(Asymmetric Paired Carrier Multiple Access，APCMA)信号背景，在一种低复杂度的盲抵消结构基础上，提出基于互补对称滤波器的盲分离算法。 For the new asymmetric paired carrier multiple access (APCMA) signal with the station signal bandwidth greater than the main station signal, on the basis of a low-complexity blind separation structure, an efficient blind separation algorithm based on the complementary symmetric filters is proposed．
25581 该算法采用互补对称滤波器从时频域上将混合信号分解为同时含主站信号与小站信号，以及只含小站信号的两路分量信号，在保证采样率不变的情况下对含主站信号的信号分量做进一步的信号分离，通过两路分量信号的同步处理确保了分离之后的两路信号分量中小站信号的可加性和完整性。 By constructing the complementary symmetric filtersth, the algorithm decomposes the mixed signal into two component signals in the time-frequency domain, one containing both the main station signal and the station signal, and the other containing only the station signal. Further, it separates the signal component containing the main station signal in the case of the same sample rate. Then, it synchronizes the two signal components under the same parameters, which ensures the additivity and integrity of the station signals in the two signal components after the separation．
25582 仿真结果表明，与原低复杂度算法相比，本文算法有效地提升了混合信号的分离性能。 The experimental results show that compared with the original low-complexity separation algorithm, the proposed algorithm effectively improves the separation performance of the mixed signal．
25583 此外，本文提出的具有信息不变性的互补对称滤波器有较广泛的应用前景，可用于宽带多信号抵消、信道估计以及隐蔽传输下的扩频检测等问题中。 In addition, the complementary symmetric filters with information invariance proposed in this paper have a wide application prospect, which can be used in broadband multi-signal cancellation, channel estimation and spread spectrum detection under covert transmission.
25584 射频能量捕获传感网(RF Energy Harvesting Wireless Sensor Network，RFEH-WSN)由专用射频能量源设备(Energy Transmitter，ET)和具有射频能量捕获功能的传感器节点(Energy Harvesting Recevier，简称 EHR)组成。 RF energy harvesting wireless sensor network (RFEH-WSN) consists of dedicated energy transmitter (ET) and sensor nodes with RF energy harvesting technology.