Study Electronics & Communication Engineering
1. A functional simulation simulates the design description to verify its logical correctness. A circuit represented in the form of logic expressions can be simulated to verify that it will function as expected. The tool that performs this task is called a functional simulator. 2. Functional simulation is necessary for complex designs, because early detection […]
Functional Simulation in VHDL Read More »
Topics Covered: Minimum Phase System All Pass System System Function Factorization Implications of the Factorization / Properties of Minimum Phase System Factorization Algorithm Magnitude Square Factorization Minimum Phase Systems: A system function H(z) is said to be a minimum phase system if all of its poles and zeros are within the unit circle. Consider a
Minimum Phase and All Pass Systems Read More »
1. The polarization of the antenna is defined as the polarization of its radiated wave. 2. The polarization of EM wave is the direction of its electric field. 3. An electric field consists of both Eθ and Eϕ components. 4. The direction of rotation of electric field along the direction of propagation represents the sense
Measurement of Polarization of Antenna Read More »
1. CDMA (Code Division Multiple Access) is a direct-sequence spread spectrum (DSSS) based technique for multiplexing. 2. Principle: – CDMA assigns a unique code sequence to each user which is used to code data before transmission. – If a receiver knows the code sequence related to a user, it is able to decode the received
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According to this, the signals near to the receiver are received with less attenuation (high power) than signals far away and create interference to other users. 1. It occurs when two or more DSSS transmitters transmits the signal towards a DSSS receiver. Power of the spread-spectrum signals transmitter is the same at the antenna of
Near-far problem in CDMA Read More »