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A Virtual Collaborative Environment for Archaeology Through Multi-User Domain in the Web
virtual reality Multiuser Domain scientific community editable scenario sharing of information exchange of data
2015/11/13
The VHLab of CNR-ITABC is developing new research projects oriented to virtual archaeology and to the study and communication of cultural heritage through multi-user virtual reality applications (off ...
Lightning and other atmospheric noise interferes with Loran signal reception. This paper develops techniques to improve signal availability under these conditions.
Time Domain Method for Precise Estimation of Sinusoidal Model Parameters of Co-Channel Speech
Time Domain Method Sinusoidal Model Parameters Co-Channel Speech
2009/9/4
A time domain method to precisely estimate the sinusoidal model parameters of cochannel speech is presented. The method does not require the calculation of the Fourier transform nor the multiplication...
Novel Time Domain Radiowave Propagators for Wireless Communication Systems
Time domain wave propagators wireless communication systems FDTD TLM terrain effe
2009/7/28
In this study, novel time domain wave propagators are used in path loss calculations for macro and micro cell coverage planning in wireless communication systems. Both Transmission Line Matrix (TLM) a...
WavenumberDomain算法是一种最优SAR信号处理算法,它广泛被应用于大孔径、高斜视情况下。但它需要在二维频域精确插值,并且不能和运动补偿技术相结合,因此不适合在实时处理中应用。该文提出两种改进方法:一种通过忽略残余距离徙动而提高处理效率,它适合于低精度处理;另一种方法使用FractionalFourier变换精确校正残余距离徙动,它适合高精度处理。这两种方法都不需要插值运算,并且都可以...
Adaptive Spatial and Transform Domain FGS Coding
Adaptive Spatial Transform Domain FGS Coding
2007/12/31
In inter-picture coding, block-based frequency transform is usually carried out on the predicted errors for each interblock to remove the spatial correlation among them.
However, it can not always do...
Steganalysis of images created in wavelet domain using quantization modulation
Steganalysis images created wavelet domain
2003/12/31
The goal of steganography is to avoid drawing suspicion in the transmission of multi-medium hidden message. But some evil may use medium to carry out some uncontrolled and unlimited information The mu...