Search - pulse

Search - pulse - List

【Communication-Mobile】 pulsgauss0 DL : 0: uwb simulation time-domain and spectrum for gaussian pulse
Update : 2024-05-05 Size : 1024 Publisher : padii
【Education soft system】 pulsgauss2 DL : 0: uwb 2-and derivative pulse gaussian simulation
Update : 2024-05-05 Size : 1024 Publisher : padii
【ERP-EIP-OA-Portal】 fdtd_2d_demo_v1_1 DL : 0: In this paper, a two-dimensional (2-D) transverse magnetic (TM) mode finite difference time domain (FDTD) method is used to simulate the indoor radio wave propagation and model the indoor ultra wideband (UWB) channel. The modulated Gaussian pulse, which is satisfied the UWB signal definition and Federal Communications Commission (FCC) indoor limit spectral mask, is used as the UWB excitation signal.
Update : 2024-05-05 Size : 3072 Publisher : baba
【Other】 PWMtechniques DL : 0: This is power point presentation which explains about the various PULSE WIDTH MODULATION TECHNIQUES, mainly giving emphasis to space vector PWM.
Update : 2024-05-05 Size : 251904 Publisher : Sumit
【Program doc】 pulse DL : 0: this code which is used to measure pulse width at port-this is code which is used to measure pulse width at port
Update : 2024-05-05 Size : 7168 Publisher : anju
【VHDL-FPGA-Verilog】 pwm DL : 0: ：随机脉宽调制是解决交流调速系统中声学噪声的直接有效方法。随机零矢量分布是一种很好的随机方法，但其不对称的开关函数使其不适用于传统的电流采样方法。通过仿真表明 PWM周期中点采样的方法无法得到准确的平均值，在分析不对称模式引起的纹波电流对电流平均值影响的基础上，提出了一种适合于 RZV分布的电流采样方法。仿真结果证实该方法简单可行。 -: Random pulse width modulation speed control system to solve the exchange of acoustic noise in a direct and effective way. Random zero vector distribution is a good random method, but the asymmetrical switching function so that it does not apply to the traditional current sampling methods. PWM cycle through the simulation shows that the mid-point sampling methods can not be an accurate, on average, the analysis of asymmetric mode ripple current caused by the impact on the current average value based on the proposed distribution of a suitable RZV current sampling methods. The simulation results confirmed that the method is simple and feasible.
Update : 2024-05-05 Size : 138240 Publisher : guoguo
【Communication-Mobile】 baseband_detection_simulink DL : 0: In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered at the detector output.-In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered at the detector output.
Update : 2024-05-05 Size : 7168 Publisher : quail
【Communication-Mobile】 pam_detection_simulink DL : 0: In this simulink model , baseband 8-ary PAM detection is simulated .A half-sine pulse shaped PAM signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The 8-ary PAM signal transmitted is recovered at the detector output.
Update : 2024-05-05 Size : 8192 Publisher : quail
【Documents】 G23D DL : 0: various algorithms for the reference-pulse interpolation method are explained, including, the software-DDA interpolation algorithm, Stairs Approximation Interpolation algorithm, Direct Search interpolation algorithm, Sampled-data interpolation method, Tustin interpolation algorithm, improved Tustin interpolation algorithm, Euler interpolation algorithm, improved Euler interpolation algorithm, and Taylor interpolation algorithm.
Update : 2024-05-05 Size : 4096 Publisher : maitinh
【matlab】 radar-function DL : 0: 雷达方程仿真程序，包括基本的雷达距离方程，雷达能量方程，脉冲压缩处理等-radar function simulation code, including basic radar range function, radar power function, pulse compress processing
Update : 2024-05-05 Size : 8192 Publisher : 张晓斌
【Other】 Pulse DL : 0: For Control The LPT Port. Send And Reseave Pulse.
Update : 2024-05-05 Size : 3072 Publisher : R K
【Program doc】 qam8_nograycode DL : 0: An 8-QAM communications channel simulation in Simulink, constructed from a 16-QAM model and using an I,Q correlation receiver. QAM (quadrature amplitude modulation) is a method of combining two amplitude-modulated (AM) signals into a single channel, thereby doubling the effective bandwidth. QAM is used with pulse amplitude modulation (PAM) in digital systems, especially in wireless applications. In a QAM signal, there are two carriers, each having the same frequency but differing in phase by 90 degrees (one quarter of a cycle, from which the term quadrature arises). One signal is called the ‘I’ signal, and the other is called the ‘Q’ signal. Mathematically, one of the signals can be represented by a sine wave, and the other by a cosine wave. The two modulated carriers are combined at the source for transmission. At the destination, the carriers are separated, the data is extracted from each, and then the data is combined into the original modulating information. -An 8-QAM communications channel simulation in Simulink, constructed from a 16-QAM model and using an I,Q correlation receiver. QAM (quadrature amplitude modulation) is a method of combining two amplitude-modulated (AM) signals into a single channel, thereby doubling the effective bandwidth. QAM is used with pulse amplitude modulation (PAM) in digital systems, especially in wireless applications. In a QAM signal, there are two carriers, each having the same frequency but differing in phase by 90 degrees (one quarter of a cycle, from which the term quadrature arises). One signal is called the ‘I’ signal, and the other is called the ‘Q’ signal. Mathematically, one of the signals can be represented by a sine wave, and the other by a cosine wave. The two modulated carriers are combined at the source for transmission. At the destination, the carriers are separated, the data is extracted from each, and then the data is combined into the original modulating information.
Update : 2024-05-05 Size : 11264 Publisher : Griffin Wright
【Program doc】 LPFPAM DL : 0: LPF Rectangular PAM Communication System. Pulse-amplitude modulation is widely used in baseband transmission of digital data, with non-baseband applications having been largely superseded by pulse-code modulation, and, more recently, by pulse-position modulation
Update : 2024-05-05 Size : 8192 Publisher : Griffin Wright
【Communication-Mobile】 pulse_shaping DL : 0: pulse shaping function: Upsampling the data and Pulse-shaping. Suitable for intergate number of upsampling_rate. psflt_data has the same length with that of data times upsampling_rate. if the length of pulse_filter is 2*grp_delay*upsampling_rate+1 By Aijun Song, July, 2005
Update : 2024-05-05 Size : 1024 Publisher : venkat
【3G develop】 smallprograms DL : 0: bpsk-binary phse shift keying,fsk-frequency shift keying,hamming code,pcm-pulse coded modulation,dpsk-differential phase shift keying
Update : 2024-05-05 Size : 4096 Publisher : pkp
【Communication-Mobile】 PulseShapingFilterswithISIFreeProperties DL : 0: isi intersybol interferance pulse shaping
Update : 2024-05-05 Size : 384000 Publisher : krishna kanth
【Other】 UWB_pulse_train DL : 0: gaussian pulse train for ultra wide bande system
Update : 2024-05-05 Size : 1024 Publisher : Young
【matlab】 nflmhamming DL : 0: Hamming窗加权非线性调频脉冲压缩程序-Hamming window weighted linear FM pulse compression process
Update : 2024-05-05 Size : 1024 Publisher : 孙艳芳
【Software Engineering】 a00000000000 DL : 0: 基于动态光谱的数字化脉搏血氧检测系统优秀硕士论文-Based on dynamic spectrum of digital pulse oximeter testing system
Update : 2024-05-05 Size : 656384 Publisher : xie
【Documents】 Waveletanalysisusingsofthresholdingfilteringinlect DL : 0: 　在采集信号时,如果传感器没有前置放大, 则传感器输出的压电信号的信噪比会比较低。本文利用小波域软阈值滤波方法对未采用前置放大而采样得到的信号进行小波分析,大幅度地提高了信号的信噪比,提取的目标信号位置与理论位置吻合的很好。这表明可以通过小波分析方法很好地改善热超声信号的信噪比,从而降低对微波致热超声成像采集系统中前置放大器的要求-When human tissue is irradiated by microwave pulses, there is thermo2acoustic signal due to heat expansion. Considering the safety, the power of microwave pulse can not be too large. Therefore, the amp litude of the induced thermo2acoustic signal is very low, and the SNR ( signal to noise ratio) of the p iezoelectric signal from ultrasonic transducer is very low without p reamp lifier in the transducer. In this paper, a soft2thresholding filteringmethod was used to p rocess the thermo2acoustic signal which was acquired from an electromagnetic induced thermo2acoustic tomography ( EM ITA) system without p re2amp lifier in the transducer. Itwas shown that the signal’s SNR was greatly imp roved, and locations of the reconstructed signal pulses agreea verywellwith the theoretical results. This research indicates thatwavelet analysismethod can greatly imp rove the SNR of the EM ITA signal and may decrease the requirement to p reamp lifier
Update : 2024-05-05 Size : 417792 Publisher : qulidan

« 1 2 ... 5 6 7 8 9 1011 12 13 14 15 ... 50 »