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detect
用功率谱进行跳频信号的检测，是一个行之有效的办法(With the power spectrum frequency hopping signal detection, is an effective way to)
- 2010-06-22 00:04:10下载
- 积分：1
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caigentanxiazai001
meiyou wenjianshuoning
(nonono nono nono nono n non non ono nonon o non on on onon)
- 2009-05-22 20:35:20下载
- 积分：1
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HW
说明： 谐波小波滤波再加上随机减量，谐波小波相当于带通滤波器，效果很好(Coupled random harmonic wavelet filter reduction, harmonic wavelet is equivalent to band-pass filter, the effect is very good)
- 2011-03-05 20:18:34下载
- 积分：1
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sigma-delta-modulation
高精度、低功耗模数转换器是当今集成电路设计模拟领域的研究热点之一，采用sigma-delta调制原理和过釆样原理的模数转换器广泛使用在音频、数字网络、电子测量等系统中。此类模数转换器，为降低信号带内的量化噪声功率，而釆用噪声整形技术，为提高模数转换器的信噪比，使用过采样技术，将基带中的量化噪声调制到了高频区域，这样就增加了基带中的信噪比，也就是增加了转换器的有效量化位数，由于采用较高的过采样率，Sigma-Delta ADC的转换速率相对较低，高精度和较低转换速率的特点，使得Sigma-Delta ADC特别适用于测量。(High precision, low power analog to digital converter is in today s integrated circuit design simulation has become one of the hot research field, the principle of sigma-delta modulation and ADC sampling principle is widely used in audio, digital network, electronic measurement system. This type of analog-to-digital converter, in order to reduce the quantization noise power signal in the band, and the use of noise shaping technique, in order to improve the SNR of the analog-to-digital converter, using the oversampling technique, modulate the quantization noise in the baseband to the high frequency region, which increases in the baseband signal to noise ratio, that is to increase the effective number of quantization bits converter, due to the sampling rate is high, the Sigma-Delta ADC conversion rate is relatively low, the characteristics of high accuracy and low conversion rate, so that Sigma-Delta ADC is especially suitable for measuring)
- 2015-01-08 13:06:02下载
- 积分：1
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NURBSclose
NURBS曲线拟合 可以实现无交叉的封闭曲线拟合(NURBS curve)
- 2021-01-11 21:38:49下载
- 积分：1
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pujianfa_1
语音增强谱减法程序，已经运行成功，效果明显(Spectral subtraction speech enhancement program has been run successfully, obvious effect)
- 2010-07-29 20:39:28下载
- 积分：1
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ECG
This project is used to eleminate the noise in the E.C.G wave form using wavelet transform. thecode is written by using matlab scripting.
- 2009-10-03 21:59:35下载
- 积分：1
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Introduction_to_Smart_Antennas_C._A._Balanis_P
In recent years a substantial increase in the development of broadband wireless access technologies
for evolving wireless Internet services and improved cellular systems has been observed [1].
Because of them, it is widely foreseen that in the future an enormous rise in traffic will be experienced
for mobile and personal communications systems [2]. This is due to both an increased
number of users and introduction of new high bit rate data services. This trend is observed for
second-generation systems, and it will most certainly continue for third-generation systems.
The rise in traffic will put a demand on both manufacturers and operators to provide sufficient
capacity in the networks [3]. This becomes amajor challenging problem for the service providers
to solve, since there exist certain negative factors in the radiation environment contributing to
the limit in capacity
- 2012-05-01 16:53:29下载
- 积分：1
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THP_QR_simulink
采用THP预编码（QR算法）的simulink仿真链路，有16QAM和QPSK两种调制方式，信道为瑞利衰落信道（simulink+m files）(using THP pre-Code (QR algorithm) simulink link, 16 QAM and QPSK modulation. Channel for Rayleigh fading channels (Simulink m files))
- 2020-11-19 16:39:38下载
- 积分：1
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DesignPatterns
this is a cours about the disgn pattern
- 2016-12-30 05:54:44下载
- 积分：1
