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DPSK Modulation and Demodulation

DPSK Modulation and Demodulation Wednesday, November 5th, 2008  »  Posted By  »  Total 10 Comments

Differential phase shift keying (DPSK), a common form of phase modulation conveys data by changing the phase of carrier wave. In Phase shift keying, High state contains only one cycle but DPSK contains one and half cycle. Figure illustrates PSK and DPSK Modulated signal by 10101110 pulse sequence

Sorting of numbers

Tuesday, November 4th, 2008  »  Posted By  »  Total 1 Comment

Sorting means arranging a set of data in some order. There are different methods that are used to sort the data in ascending order. Some of the  methods are Selection sort Bubble sort Insertion sort 1. Selection sort Here, to sort the data in ascending order, the 0th element is compared with all other elements. [...]

Electronic house

1 Tuesday, November 4th, 2008  »  Posted By  »  Total 130 Comments

Abstract : To develop security system for houses and to save electric  power. Scope : This project proposes the development of security system for farm houses and residential houses. In an extremely mechanized world such as today’s it is necessary to make our life better, convertible and economical. This is the purpose for which the [...]

DC Motor Controlling System using PIC

DC Motor Controlling System using PIC Sunday, November 2nd, 2008  »  Posted By  »  Total 15 Comments

Now a days DC motors plays a vital role in most of the industrial areas, it can be seen in most of the electronic devices. They are mainly used for the mechanical movements of physical applications such as rolling the bundle of sheets or CD drives, lifts etc. Many methods evolved to control the revolution [...]

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