Blind estimation of pseudo-random codes in non-periodic long code direct-sequence spread-spectrum signals by HAOZhi-jin Z, UXiao-wei G, HENLei S, HANYi Z

Subjects: “…non-periodic long code direct-sequence spread-spectrum (NPLC-DSSS) signal…”
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An Optimized Approach for Secure Data Transmission Using Spread Spectrum Audio Steganography, Chaos Theory, and Social Impact Theory Optimizer by Rohit Tanwar, Kulvinder Singh, Mazdak Zamani, Amit Verma, Prashant Kumar

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Key technologies of smart home network based on G.hn by Dongdi XIAO, Wenda YING, Tao GUO

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Probabilistic Error Modeling and Topology-Based Smoothing of Indoor Localization and Tracking Data, Based on the IEEE 802.15.4a Chirp Spread Spectrum Specification by Olga E. Segou, Stelios C. A. Thomopoulos

“…This work presents an extensive study of indoor tracking based on the chirp spread spectrum (CSS) specification and an associated analytical framework that allows comparisons to be made between different deployments. …”
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Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication by Naoto Masutomi, Shenghong Ye, Bo Li, Ryota Kaide, Ming Che, Yuya Mikami, Yuta Ueda, Kazutoshi Kato

Subjects: “…frequency-hopping spread spectrum…”
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A 3.9 μs Settling-Time Fractional Spread-Spectrum Clock Generator Using a Dual-Charge-Pump Control Technique for Serial-ATA Applications by Takashi Kawamoto, Masato Suzuki, Takayuki Noto

“…A low-jitter fractional spread-spectrum clock generator (SSCG) utilizing a fast-settling dual-charge-pump (CP) technique is developed for serial-advanced technology attachment (SATA) applications. …”
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On the TC/MAX criterion for code acquisition and its application to UWB systems by WANG Jiang, BI Guang-guo, ZHANG Zai-chen

Subjects: “…spread spectrum communication…”
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Analysis of the Indicators Based on the DS/FH TT&C System by Youyou Xi, Jianhua Hao, Naiping Cheng, Maoguo Liu

Subjects: “…hybrid spreading spectrum TT＆C system…”
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Research on Random Access of Satellite Internet of Things Based on Load Prediction by Xiwen MAO, Haitao WANG, Gengxin ZHANG

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MM-LoRa-Mod: A non-coherent LoRa modulation scheme for underwater acoustic communications by YU Xiao, XU Weikai, SUN Haixin, LIU Qi

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Spectral Content Effects Study in Non-Contact Resonance Ultrasound Spectroscopy by Muhammad Tayyib, Linas Svilainis

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Performance of XFAST in the presence of code Doppler by TANG Xiao-mei, YONG Shao-wei, WANG Fei-xue

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Performance analysis of DSSS system with periodic sequence against CW interference1 by WEI An-quan1, SHEN Lian-feng 1

Subjects: “…direct sequence spread spectrum…”
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Dual functional radar communication based on serial time division CC-CDMA by Yubo LI, Jian CUI, Junchao FENG, Xiaoyu CHEN

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Application study of Costas arrays in multiuser radar systems by YAO Jian-guo1, HUANG Qing2

Subjects: “…frequency hopping spread spectrum…”
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Research on Code-Division Multiple-Access of DS-SS/EBPSK Modulation by Peng Zhang, Lenan Wu

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The performance analysis of SEMA system by LI Li-chun, RAN Chong-sen, FAN Shao-jie, WEI Feng

“…A novel kind of spread spectrum system is introduced. The enhanced transmission security arises from the special spectrum spreading and de-spreading processes. …”
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Video watermarking algorithm for resisting collusion attacks by LIU Shao-hui, HAN Lu, YAO Hong-xun

“…These components may be then used as building blocks to construct a self-adaptive content dependent spread spectrum watermark solution. Experimental results have been shown that the performance of the proposed strategy can resist effectively two types of linear collusion attacks while still being robust, stable and imperceptible.…”
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An Optimization Synchronization Algorithm for TDDM Signal by Fang Liu, Yongxin Feng

“…The time division data modulation (TDDM) mechanism is recommended to improve the communications quality and enhance the antijamming capability of the spread spectrum communication system, which will be used in the next generation global navigation satellite (GNSS) systems. …”
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Turbo iterative acquisition algorithm for satellite high-mobility DSSS signal by Chunxiao JIANG, Jiawei WANG

“…To solve the problems of the low acquisition probability and high computational complexity in satellite high-mobility communications, a new factor graph was designed for acquisition of the high-mobility direct sequence spread spectrum (DSSS) signal, where time-varying Doppler rates were modeled by the random walk model.Based on the proposed factor graph, the turbo iterative DSSS signal acquisition algorithm was proposed.In the Doppler-estimation loop, the negative influence of Doppler frequency offsets and Doppler rates could be eliminated effectively.Then in the code-detection loop, constraints of each chip was used to recover the received signal, to achieve DSSS signal acquisition.Simulation results show that the proposed algorithm is capable of improving the acquisition performance at less 1.3 dB with low computational complexity.…”
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