RADAR AND NAVIGATIONAL AIDS NOTES

RADAR AND NAVIGATIONAL AIDS NOTES

Greeting of the Season & Happy Deepaawali to all.

RADAR:

Radar (RAdio Detection And Ranging) is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects.

USE: 

It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. 

BASIC HARDWARE COMPONENTS:

A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the object(s). 

PRINCIPLE OF WORKING:

Radio waves (pulsed or continuous) from the transmitter reflect off the object and return to the receiver, giving information about the object's location and speed.

GENERAL INTRODUCTION:

Radar was developed secretly for military use by several nations in the period before and during World War II. A key development was the cavity magnetron in the UK, which allowed the creation of relatively small systems with sub-meter resolution. The term RADAR was coined in 1940 by the United States Navy as an acronym for RAdio Detection And Ranging or RAdio Direction And Ranging. The term radar has since entered English and other languages as a common noun, losing all capitalization.

MODERN USES:

The modern uses of radar are highly diverse, including air and terrestrial traffic control, radar astronomy, air-defence systems, antimissile systems, marine radars to locate landmarks and other ships, aircraft anticollision systems, ocean surveillance systems, outer space surveillance and rendezvous systems, meteorological precipitation monitoring, altimetry and flight control systems, guided missile target locating systems, ground-penetrating radar for geological observations, and range-controlled radar for public health surveillance. High tech radar systems are associated with digital signal processing, machine learning and are capable of extracting useful information from very high noise levels.

SEE BELOW THE NOTES FOR RADAR ENGINEERING.

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All the best......!!!!!

CHHATTISGARH: The Land of Goddesses

CHHATTISGARH: The Land of Goddesses

#Happy Navratri 2017
जय माता दी 

The nine divine night’s of festival, dedicated in the honour of Goddess Durga. The biggest annual festival is celebrated at every temple of Maa Durga across the country. There are innumerable temples throughout India, dedicated to Maa Durga. Some of the most famous Durga temples are Vaishno Devi, Chandi mandir Chandigarh, Kamakhya Temple, Dakshineswar Kali, Ambaji Mata temple and Edakkunni Sri Durga Bhagavathy Temple. There are 51 Shakti Peeth of goddess Shakti or Parvati,located throughout India and neighbor countries.

Similarly there are so many temples of Goddess Durga in Chhattisgarh also.

They are very famous among the locals as well as the tourist around the country and abroad as well. There are so many beautiful legends depicting the mighty power of goddesses and faith among the people of Chhattisgarh.

Most famous among all is Maa Bamleshwari at hilltop located at Dongarhgarh , Rajnandgoan, Chhattisgarh on Mumbai Howrah Rail route, where people of all faith gather through out the year, fairs are also organised at full swing during Navaratri festival where thousands of devotee gather to celebrate the Navratri Festival.

In my blog I have tried to gather the pics at one place so can people have a glimpse of all the major goddesses of Chhattisgarh.