# Author archives: fauzia.neshat

• ### Characteristics of Wireless Medium No ratings yet.

Jan 22, 18 • 4154 Views • Engineering Notes, NotesNo Comments

CHARACTERISTICS OF WIRELESS MEDIUM Characteristics of wireless medium is divided into two parts:- Radio Wave Propagation Path loss Modelling and Signal RADIO WAVE PROPAGATION Radio Wave Propagation is the behavior of radio waves when the waves are transmitted

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### Signal To Interference Ratio And Network Planning For Cdma System No ratings yet.

Jun 29, 13 • 3884 Views • Engineering Notes, NotesNo Comments

The signal-to-interference ratio (S/I or SIR) It  is also termed as the carrier to interference ratio (C/I, CIR), it  is the measure among the average received modulate carrier power S or C and the average received co-channel

• ### IMAGE ENHANCEMENT No ratings yet.

Jun 23, 13 • 1340 Views • Engineering Notes, NotesNo Comments

IMAGE ENHANCEMENT The main objective of Image enhancement is to process an image so, that result is more accurate than original image for a specific application. Image enhancement is done by using two method Spatial domain method Frequency domain method

• ### IMAGE COMPRESSION No ratings yet.

Jun 21, 13 • 1046 Views • Engineering Notes, Notes2 Comments

IMAGE COMPRESSION When the large amount of data is stored in a space is known as image compression. It is of two types Lossless compression Lossy compression LOSSLESS COMPRESSION: It is a reversible process No information is lost It is useful for text data

• ### Relationship between pixels, image acquisition system & Imaging Geometry No ratings yet.

Jun 18, 13 • 9733 Views • Engineering Notes, Notes27 Comments

Basic Relationships Between Pixels 1. Neighborhood 2.Adjacency 3. Connectivity 4.Paths 5.Regions and boundaries 1.Neighbors of a Pixel • Any pixel p(x, y) has two vertical and two horizontal neighbors, specified by (x+1, y), (x-1, y), (x, y+1), (x, y-1) •

• ### IMAGE TRANSFORM No ratings yet.

Jun 17, 13 • 2139 Views • Engineering Notes, Notes4 Comments

IMAGE TRANSFORM Depending on the transform chosen an operator or function selects an image as input and produces an image as output. KL analysis, fourier transforms and various spatial filters are image transformation procedure.   HAAR TRANSFORM One of

• ### WIRELESS LAN, HOME AREA NETWORK , PHY AND MAC LAYER No ratings yet.

Jun 17, 13 • 1130 Views • Engineering Notes, Notes4 Comments

WIRELESS LOCAL AREA NETWORK (WLAN) A Wireless Local Area Network (WLAN) is  a flexible data communication system frequently augment rather than replace a wired LAN inside a building or campus. WLANs use radio frequency to spread and receives information over

• ### IMAGE RESTORATION No ratings yet.

Jun 16, 13 • 1046 Views • Engineering Notes, Notes1 Comment

IMAGE RESTORATION Image restoration is use to improve the appearance of an image. Restoration technique on image degradation tends to be based on mathematical or probabilistic model so, it is objective. IMAGE RESTORATION/DEGRADATION MODEL   Input image