ELECTRONIC INDUSTRIES
Year:2011 | Volume:2 | Issue:2 (6)|Papers Count:8

Transmission Line Cloaking for Arbitrary Objects by Transmission Line and Metamaterial is Presented. Transmission Line Causes Electromagnetic Waves to be Coupled Into Network Surrounding the Object and Pass across Without Forward and Backward Scattering. Large Object Cloaking is Provided by Using a New Structure Which has an Empty Space in the Center. Simulation Results Reveal that the Bandwidth of this Class of Cloaks is Increased by Embedding the Two-Dimensional Transmission Networks in between Whose Refractive Index is much Smaller than Unity. The Low Refractive Index is Realized by Embedding Several Thin Wires in a Host Unit.

For detecting sudden deviations of a vehicle need to Diagnose a Vehicle. An Important Point in Diagnosing a Vehicle is to Use Stable Techniques Versus Changes. In this Paper, to Detect the Vehicle, a Symmetry Feature has Applied Which is Stable Against Light Changes. It is Also Regarded as an Effective Method for Dealing With a Vehicle Overlapping Problem. To Find a Symmetry Line of Vehicles, We have Applied a Method of the Fast Symmetry Line Detection. This Method Gets the Symmetry Line of Each Object By Using of Hough Transform and Means of Edge Pixels. In Addition, the Improved Algorithm of the Method of Fast Symmetry Line Detection has been Proposed. The Algorithm is Offered for Removing Errors Resulted From image Depth so that the Algorithm of the Fast Detection has not been Able to Remove it. In Order to Track Vehicles, a Kalman Filter is Applied. The Tests Indicate that the Proposed Method is Able to Track a Great Number of Vehicles on the Road With a Precision of 95.52%.

In this Paper a New Technique to Design Receiver Protector Based on S-Parameters is Presented. The Main Goal is to Achieve Maximum Power Handling. In Conventional Way Analyzing and Optimizing Power is Needed to Reach Maximum Power Handling. In the Proposed Method We Present a Protective Circuit With High Power Handling and Selective Frequency Characteristic that Uses Only the S- Parameters.

Detection of the Range Spread Target in High Resolution Radar(HRR) is Studied and a Novel Method Based on Strong Scattering Centers in Complex White Noise is Proposed. The Proposed Detector Uses Two-Threshold Strategy. The First Threshold Determines Strong Scattering Centers of the Target Then; These Centers are Used in a GLRT Test to Decide About Presence of Target. Then, It is Compared With Conventional Detectors in Different Target Scattering Models and Good Performance is Reported. In Addition, the Detector has Constant False Alarm Rate (CFAR) Property.

In this Paper, According to the Size of the Transistors and the Feedback Gain of the Oscillator, a Design Point in Which Maximum of the Active Core of the Oscillator is Presented. We Utilre Atrams Forme to Realise gain. Employed in Such a Way that it Could be Able to Provide the Feedback Gain for the Oscillator and Also Eliminate the Large Portion of Parasitic Capacitance, Simultaneously. By Using this Technique, the Phase Noise at 1MHz Offset and the Tuning Range in Comparison With the General Transformer Oscillator is Improved by 5dB and 70% Respectively. Furthermore, We Show that With Linearization of the Oscillator in Millimeter-Wave Frequencies, Phase noise of the Oscillator can Also be Reduced Even More. Regarding this Criteria We Linearize the Oscillator as Much as Possible. Post-Simulation Results Show that the Circuit Designed in 0.18-μ.m CMOS Technology, Consumes 43mW While Showing -89dBc/Hz Phase Noise at 1MHz Offset With 1.9GHz Tuning Range Around 57GHz.

Use of Four-Quadrant and Lateral Effect Photo detectors are Two Main Methods to Detec of Movable Objects. In This Paper, Design and Simulation of Electronic Circuit of This System is Presented and the Current Time Delay Method is Compared With the Voltage Different Method Which Appears Between the Electrodes of Lateral Effect Position Sensitive Detector. In This Comparison, There are Some Useful Characterizations of Delay Time Method Comparing to the Voltage Difference Method Such as More Linearity in Response, Position Independent from Amplitude and Frequency, Response Independent from Background Light, and Unnecessary Signal Normalization. In Addition, the Time Delay and Voltage Difference Methods are Investigated and Compared for Some Real Lateral Effect Photodetectors.

This Paper Proposes a Technique to Locate a Tourist in the City Map By Using an Image Captured from the Local Map. In Addition, the Captured Image is Matched With the City Map Stored in the Phones Memory to Recognize the Unknown Places. In Addition, We Use the SIFT (Scale Invariant Feature Transform) Algorithm to Extract Proper Descriptors for the Salient Key Points of the Images. There fore It Employs the Key Points of the Two Images to Locate the Captured Image in the City Map. Experimental Results on Low Quality Images from Local Maps Captured by Phone Camera are Very Promising. Using the Proposed Approach, Travelers can be Properly Guided in the City.