Polyphase is a common class of pulse compression waveforms in the radar systems. Oppermann code is one of the used codes with polyphone pattern. After compression, this code has little tolerant against Doppler shift in addition to its high side lobe level. This indicates that the use of Oppermann code is an unsuitable scheme to radars applications. This paper shows that the use of amplitude wei...

This paper evaluate the multilevel modulation for different techniques such as amplitude shift keying (M-ASK), MASK, differential phase shift keying (M-ASK-Bipolar), Quaternary Amplitude Shift Keying (QASK) and Quaternary Polarization-ASK (QPol-ASK) at a total bit rate of 107Gbps. The aim is to find a costeffective very high speed transport solution. Numerical investigation was performed using ...

Two methods of the classification of digital modulations ASK, FSK2, FSK4, MSK, BPSK, QPSK, 8PSK and QAM-16 are presented. The first algorithm is based on module and phase spectrogram analysis. Here it is very important to estimate the symbol length of the received signal and thus we introduce two methods for this purpose. They are based on the wavelet transform and cepstrum analysis. The second...

Due to permanent changes, companies constantly need to contend with new challenges. Developing and improving business models can help to adapt to constantly changing environmental conditions and to achieve competitiveness. Because most innovative developments are not the result of a single inventor, we used Collaboration Engineering to elaborate a systematic process design for business model de...

In the present paper, a new coding scheme for infrared ASK communication systems—Pulse Sequence Modulation (PSM)—will be proposed, which uses a combination of pulse sequences so that it canattain zero-spectrum points at specific frequencies within the main-lobe region. The interference to the other IR systems was a problem of the conventional infrared ASK communication systems. The proposed PSM...

This paper presents the experimental evaluation of a fully-differential offset-compensated voltage comparator designed for use in multilevel (ML) Flash memory sensing. The comparator is made up by an input buffering stage followed by a gain stage that performs a regenerative action. The circuit has been integrated in a 0.13-μm triple-well Flash CMOS process. The experimental evaluation showed a...

Several outcome tools have been developed to measure physical functioning in pediatric orthopedic patients. One such tool, the Activities Scale for Kids (ASK), allows assessment of physical functioning in the community in 5to 15-year-olds. Previous validation of the ASK showed a significant difference in scores according to global ratings of disability. In this study, the ASK was administered t...