hojjat

Score: 109
Uploads: 6
Downloads: 93
Create time: 2017-07-08 23:26:35

Upload log:
New folder.rar - this PDF is about synthetic aperture radar
alpha_filter_window.rar - this code is the hamming windowind
MM.rar - this function is estimate doppler centroid in synthetic aperture radar with ACCC.The basic SAR theory is conceptually simple yet when one looks into the inner workings of the SAR processor it appears quite complicated
important article2.rar - In the proposed algorithm, the range-independent de-rotation operation is employed to overcome the spectrum aliasing problem, and the signal properties after de-rotation are derived in detail. Moreover, a modified range-dependent deramp function is proposed to accommodate the time shift, and the chirp-z transform is utilized for correcting geometry distortions caused by the range-dependent deramp operation. Furthermore, range scaling and azimuth scaling are performed, providing the same pixel sampling interval for all sub-swath images in both range and azimuth dimensions respectively, which avoids interpolation for the sub-swath image
original_path_mat.rar - Advanced synthetic aperture radar (SAR) systems achieve high spatial resolution by using wide range bandwidth combined with long azimuth illumination time. In order to deal with such sensor parameters, high quality SAR focusing methods and often preprocessing of the raw data are necessary.
sar3.rar - Advanced synthetic aperture radar (SAR) systems achieve high spatial resolution by using wide range bandwidth combined with long azimuth illumination time. In order to deal with such sensor parameters, high quality SAR focusing methods and often preprocessing of the raw data are necessary.

Download log:
ofdm_16qam.rar - Output ofdm 16qam with flv
OFDM_16QAM.zip - This program support OFDM systems using 16QAM modulation. OFDM system utilize fft/ifft modules to transmit parallel data streams.
OFDM_16QAM.rar - 16 QAM modulation for OFDM
16-QAM.rar - Modulate&Demodulate 16-QAM
PGA.zip - 相位梯度自聚焦算法(PGA)的matlab程序实现,合成孔径雷达中最经典最常用的自聚焦和运动误差补偿方法
Phase-Gradient-Autofocus.rar - 相位梯度自聚焦算法论文,原作者所写,毕业论文里的引文用的就是这篇
Range-Dependent-Phase-Gradient-Autofocus.rar - The Phase Gradient Autofocus (PGA) algorithm has been widely used in Spotlight Synthetic Aperture Radar (SAR) to remove motion-induced blurs in the images. The PGA algorithm has been proven to be a superior autofocus method. PGA assumes a narrow beam, which is valid for most SAR systems. However, lower altitude SA& have large range dependencies that cannot be ignored. A new phase estimator for PGA is introduced and extended to allow range dependence. An ERS-1 image of Death Valley is used in simulations comparing the new estimator to the widely used maximum likelihood approach and in demonstrating the range-dependent PGA algorithm.
SARAutoFocus.zip - 机载合成孔径雷达自聚焦算法,没有实测数据,用的是点目标仿真
PGA.rar - 功能[DATAOUT]= PGA(DATAIN),执行相位梯度 %ISAR自动对焦。 % %DATAIN ISAR范围内的实时数据。 DATAOUT%范围内的实时数据已被删除平移 %相位误差。 % %参考: %D.E.瓦尔,P.H.艾歇尔,特区吉利亚,C.V. Jakowatz,“相 %梯度自聚焦一个强大的工具,用于高分辨率SAR相 %修正“,硕士论文。航空。&电子系统,第30卷,3,1994。
AUTOFOCUS_ALGORITHM.rar - A SAR AUTOFOCUS ALGORITHM BASED ON
AutoFocusing_Contrast.rar - 合成孔径雷达的自聚焦算法使用matlab实现。是最大对比度法
dopplercenter.rar - 合成孔径雷达SAR图像成像中多普勒中心检测的六种算法,使用matlab编程
Doppler_Centroid_Estimate.rar - 利用能量均衡法对实测的合成孔径雷达回波数据估计出其多普勒中心
bpsk.zip - bpsk simulation awgn channel
bpsk.rar - bpsk modulation in matlab
BPSK.rar - MATLAB BPSK调制 MATLAB BPSK调制
Bluetooth_Full_Duplex.zip - Simulink® and Stateflow® model of a full duplex Bluetooth communication link transmitting HV1, HV2, HV3, and SCORT [1] voice packets, and DM1 data packets. A system parameters block configures the whole model s packet type, slot pair and channel type. Stateflow is used to implement the acknowledgement scheme for the data packets and the SCORT receiver state machine. NOTE: A version of this model which works with the current release of MATLAB and Simulink is shipped with the Communications Blockset™ . The model includes wave file I/O, CVSD speech coding, HEC, payload CRC for DM1, FEC, framing, GFSK Modulation, frequency hopping, hop sequence generation, an 802.11b interferer, BER meters, throughput meters, plus spectrum, timing and spectrogram plot (which can be turned-off).
staring-imaging.zip - 关于简单的凝视成像的程序,自己编写,希望交流!
ecs_SAR(Chirp-Scaling).zip - Chirp Scaling Algoritm
side_look.zip - 正侧视回波和chirp-scaling算法

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