Description: 直接序列扩频通信可以有效地抵抗来自信道中的窄带干扰。在一个直扩通信系统中,扩频是通过伪噪声序列(PN)对发送的信息数据进行调制来实现的。在接收端,原伪噪声序列和所收信号的相关运算可将窄带干扰扩展到DS信号的整个频带,使干扰等效为幅度较低频谱较平坦的噪声；同时，将DS信号解扩,恢复原始信息数据。-direct sequence spread spectrum communication can be effective resistance from the channel narrowband interference. In a DSSS system. Spreading through the sequence of pseudo-noise (PN) to send the right message to data modulation to achieve. On the receiving end, the original pseudo-noise sequence and the received signal may be related Operational narrowband interference signal DS extended to the whole band, make tampering equivalent to a lesser extent than the flat spectrum of noise; Meanwhile, the DS signal disspreaded restore the original data. Platform: |
Size: 111604 |
Author:赵艳朝 |
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Description: 线性自适应预测滤波算法，用于扩频通信中的窄带干扰信号的抑制，对搞窄带干扰抑制的朋友会有所帮助！-linear adaptive filter algorithm forecast for the spread spectrum communication signals in the narrow band interference suppression to engage narrowband interference suppression friends will help! Platform: |
Size: 849 |
Author:高丽 |
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Description: 线性自适应预测滤波算法，用于扩频通信中的窄带干扰信号的抑制，对搞窄带干扰抑制的朋友会有所帮助！-linear adaptive filter algorithm forecast for the spread spectrum communication signals in the narrow band interference suppression to engage narrowband interference suppression friends will help! Platform: |
Size: 1024 |
Author:高丽 |
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Description: 直接序列扩频通信可以有效地抵抗来自信道中的窄带干扰。在一个直扩通信系统中,扩频是通过伪噪声序列(PN)对发送的信息数据进行调制来实现的。在接收端,原伪噪声序列和所收信号的相关运算可将窄带干扰扩展到DS信号的整个频带,使干扰等效为幅度较低频谱较平坦的噪声；同时，将DS信号解扩,恢复原始信息数据。-direct sequence spread spectrum communication can be effective resistance from the channel narrowband interference. In a DSSS system. Spreading through the sequence of pseudo-noise (PN) to send the right message to data modulation to achieve. On the receiving end, the original pseudo-noise sequence and the received signal may be related Operational narrowband interference signal DS extended to the whole band, make tampering equivalent to a lesser extent than the flat spectrum of noise; Meanwhile, the DS signal disspreaded restore the original data. Platform: |
Size: 111616 |
Author:赵艳朝 |
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Description: In 揚erformance of multi-carrier DS CDMA Systems?we apply a multi-carrier signaling technique to a direct-sequence CDMA system, where a data sequence multiplied by a spreading sequence modulates multiple carriers, rather than a single carrier. The receiver provides a correlator for each carrier, and the outputs of the correlators are combined with a maximal-ratio combiner. This type of signaling has the desirable properties of exhibiting a narrowband interference suppression effect, along with robustness to fading, without requiring the use of either an explicit RAKE structure or an interference suppression filter. Platform: |
Size: 7168 |
Author:ganga |
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Description: In 揚erformance of multi-carrier DS CDMA Systems?we apply a multi-carrier signaling technique to a direct-sequence CDMA system, where a data sequence multiplied by a spreading sequence modulates multiple carriers, rather than a single carrier. The receiver provides a correlator for each carrier, and the outputs of the correlators are combined with a maximal-ratio combiner. This type of signaling has the desirable properties of exhibiting a narrowband interference suppression effect, along with robustness to fading, without requiring the use of either an explicit RAKE structure or an interference suppression filter. Platform: |
Size: 357376 |
Author:ganga |
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Description: 自己编的lms算法，用于扩频通信抑制窄带干扰的时域预测仿真-Own the lms algorithm for narrowband interference suppression spread spectrum communication time-domain simulation of the forecast Platform: |
Size: 1024 |
Author:晓敏 |
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Description: 讨论了变换域通信系统中收发端一致时的系统性能，包括AWGN信道及单音，多音，窄带，扫频干扰-Discussed the transform domain communication system is identical to sending and receiving end system performance, including the AWGN channel and the tone, multi-tone, narrowband, swept-frequency interference Platform: |
Size: 79872 |
Author:李立金 |
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Description: 1.设计自适应信号分离器，用以从白噪声中提取周期信号。其中选取正弦信号s=sin(2*pi*t/10)为周期信号，宽带噪声信号为高斯白噪声，设置参考通道延迟为50。
2.宽带信号中的窄带干扰抑制实际上是自适应信号分离的一种应用，借助自适应信号分离器可以方便的实现窄带干扰的对消。-1. Design of adaptive signal separator, used to extract from the white noise periodic signal. The extraction of sinusoidal signals s = sin (2* pi* t/10) for periodic signals, broadband noise signal is Gaussian white noise, set the reference channel delay of 50.
2. Wideband signals in the narrow-band interference suppression is actually an application of adaptive signal separation, using adaptive signal separator can be easily achieved narrowband interference cancellation. Platform: |
Size: 1024 |
Author:wanchun |
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Description: Narrowband Interference Suppression in DSSS System Based on Frequency
Shift Wavelet Packet Transform-Narrowband Interference Suppression in DSSS System Based on Frequency
Shift Wavelet Packet Transform Platform: |
Size: 112640 |
Author:张洋 |
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Description: 自己编写的闭运算，用于白噪声和窄带周期干扰的抑制-I have written closing operation for the period of white noise and narrowband interference suppression Platform: |
Size: 1024 |
Author:高帆 |
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Description: 通过blackman窗进行数据截断后，进行频域去窄带干扰，通过仿真验证正确-Blackman window through the data truncation, the frequency domain to narrowband interference, the right is verified by simulation Platform: |
Size: 1024 |
Author:zheng yongzhi |
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Description: 直接序列扩频Matlab程序源码 直接序列扩频通信能有效地抵抗来自信道中的窄带干扰。在一个直扩通信系统中，扩频是通过伪噪声序列(PN)对发送的信息数据进行调制来实现的。在在接收端，原伪噪声序列与所收信号的的相关运算可将窄带干扰扩展到DS信号的整个频带，使干扰等效为幅度较低频谱较平坦的噪声；同时，将DS信号解扩，恢复原始信息数据。 可直接使用。
-Direct Sequence Spread Spectrum Matlab program source code direct sequence spread spectrum communication can effectively resist the narrow-band interference from the channel. In a DSSS communication systems, spread spectrum modulation to send information and data by the pseudo-noise sequence (PN). At the receiving end, the original pseudo-noise sequence and the received signal computing narrowband interference extended to the entire frequency band of the DS signal, interference equivalent to a lesser extent the relatively flat spectrum noise the same time, the DS signal despreading restore the original data. Can be used directly. Platform: |
Size: 1024 |
Author:edible |
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Description: 为了进一步提高直接序列／跳频（ＤＳ／ＦＨ）扩频系统的抗干扰能力，基于小波包变换结合递归最小二乘算法设计
了一种变换域自适应干扰抑制算法，该算法采用小波包分解定位窄带干扰，递归最小二乘算法抑制窄带干扰。通过蒙特卡
罗仿真分析在增加抗干扰模块后，ＤＳ／ＦＨ系统工作在准静态时，在不同信噪比条件下抗窄带干扰性能。仿真结果表明：该
算法具有较强的自适应性以及抗窄带干扰能力，其性能优于传统的直接置零法，适用于多音干扰下的恶劣通信环境。-In order to further improve the anti-jamming capability of direct sequence/frequency-hopping spread spectrum system (DS/FH), based on wavelet packet transform combined with recursive least squares algorithm design a transform domain adaptive interference suppression algorithm, the algorithm uses wavelet packet decomposition positioning narrowband interference, narrowband interference suppression recursive least squares algorithm. By Monte Carlo simulation analysis to increase the anti-jamming module DS/FH system work in the quasi-static, in different SNR anti narrowband interference performance. Simulation results show that: the algorithm has strong adaptability and resistance to narrowband interference ability, its performance is superior to the traditional method of direct zero, poor communication environment suitable for multi-tone interference. Platform: |
Size: 301056 |
Author:dm |
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Search - narrowband interference