Researcher at IIRS-ISRO, currently working on LiDAR technology. Completed my M.tech from NIT Bhopal with specialisations in GIS field, and m

Saumyata Srivastava

In comparison to conventional methods of Surveying Photogrammetry, Remote Sensing and GIS are fast as well as more reliable. This course explained the basic concepts of the same.

GATE (Graduate Aptitude Test in Engineering) 2020 & 2021 complete preparation with best educators. Know about the detailed syllabus, best books, exam pattern and dates, previous year question papers a

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English

Advance Surveying: GATE

Photogrammetry

Surveying

Civil Engineering

GATE & ESE - Civil

GATE, ESE and IIT-JAM

Ace the toughest competitive and government exams in India 

Test Preparation

This course comprises the introduction to Photogrammetry, types of Aerial photographs and scale require for the same.

Overview : Starts with Photogrammetry

This lesson conprises of vertical aerial photography and image parallax concept during photogrammetry.

Photogrammetry : Relief displacement, Image Parallex

This lesson comprises of method of photogrammetry, mapping with aerial photographs and it's applications in real world.
Gate questions based on photogrammetry is also discussed

Photogrammetry : Mapping with Aerial Photographs

This lesson gives the introduction to remote sensing technology. And it also defines the process of Remote Sensing

Remote Sensing

This lesson is explain the concept of active and passive sensors. It also tells the type of wavelength use for a particular type of Remote Sensing.

Remote Sensing : Interaction with Atmosphere

This lesson discuss the application of Remote Sensing technology in the real world.

Remote Sensing Application in Real World

Lesson covers the Remote Sensing satellites and types of sensors used. It also described the characteristics of the sensor - spatial resolution.

Remote Sensing Satellites and it's Sensors

This lesson discuss the characteristics of Remote Sensing satellites sensors. And also multispectral scanning.

Characteristics of Remote Sensing Sensors

Lesson  explained the concept of thermal imaging and MSS imaging. Also discussed about LANDSAT sensors. And various weather satellites and sensors.

Types of Remote Sensing Satellites

This lesson discuss the weather, land and marine satellites and sensors. It also discuss the concept of data reception, transmission and processing.

Weather, Land and Marine Observation Satellites and Sensors

This lesson explained the visual interpretation keys in image analysis process.

Visual Interpretation of Digital Image

Lesson explained the concept of digital processing of images and also explained radiometric correctios.

Digital Image Analysis : Digital processing and Radiometric Correction

This course discuss about Geometric correction in an image and also discuss about image enhancement methods.

Digital Image Rectification and Restoration

This lesson discuss about image classification, Image merging and GIS Integration and Image Transmission process.

Image Classification, Data merging and GIS Integration

This lesson discuss the application of Remote Sensing and satellite data required for the same in the field of agriculture and forestry.

Application and data requirement of Remote Sensing : Agriculture and Forestry

This lesson discuss the Remote Sensing application and data requirement for Land cover, Land use and Mapping.

Application and Data required for Remote Sensing : Land cover and Mapping

B.Tech. in civil engineering at IIT Kharagpur. Summer research intern at the University of Edinburgh, United Kingdom. 

Ashish Ranjan

It deals with distance and angle measurement - levelling and trigonometric levelling, traversing and triangulation survey, total station, horizontal and vertical curves. It is a continuation of my previous course named Surveying - Part 1.

Surveying - Part 2: GATE (CE)

Civil Engineer | M.E. Grad in Transportation Engg. | Passionate about teaching | Derive my happiness sharing knowledge and help learners

Dhananjay Pandya

A prismatic compass is a navigation and surveying instrument which is extensively used to find out the bearing of the traversing and included angles between them, waypoints (an endpoint of the course) and direction. Compass surveying is a type of surveying in which the directions of surveying lines are determined with a magnetic compass, and the length of the surveying lines are measured with a tape or chain. The compass is generally used to run a traverse line. The compass calculates bearings of lines with respect to Magnetic North. The included angles can then be calculated using suitable formulas in case of clockwise and anti-clockwise traverse respectively. For each survey line in the traverse, surveyors take two bearings that are fore bearing and back bearing which should exactly differ by 180° if the local attraction is negligible. The name Prismatic compass is given to it because it essentially consists of a prism which is used for taking observations more accurately.

(Hindi) Compass Surveying : GATE(CE)

I have left Unacademy. Follow me on Youtube "The Gate Hunt".

Mohit Joshi

In this course we will study three chapters of Surveying for GATE Civil Engineering viz. 1. Compass Survey 2. Traverse Survey 3. Levelling

(Hindi) GATE Surveying Complete (Part 2)

Civil Engineering Graduate from Indian Institute of Technology Guwahati

Shivshant Tripathi

The course Theory of Errors is divided into two parts. Part 1 of the course will provide knowledge about errors, its types, how to measure errors and what are the different methods to quantify errors, very concisely and precisely. Each concept related to the theory of errors are thoroughly discussed in this course. Examples are also solved to give a better understanding of important concepts.

(Hindi) Part 1: Theory of Errors

Accuracy and Precision
-Accuracy and precision are two different, yet equally important surveying concepts. 
Accuracy is the degree of conformity of a given measurement with a standard value. 
Precision is the extent to which a given set of measurements agree with their mean.
Measurements are never exact and there will always be a degree of variance regardless of the survey instrument or method used. These variances are known as errors and will need to be reduced or eliminated to maintain specific survey standards.
Even when carefully following established surveying procedures, observations may still contain errors. Errors, by definition, are the difference between a measured value and its true value. The true value of a measurement is determined by taking the mean value of a series of repeated 
measurements. Surveyors must possess skill in instrument operation and knowledge of surveying methods to minimize the amount of error in each measurement.
1. Blunders

(Hindi) Errors & Adjustment in Surveying : GATE (CE)

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Praveen Kumar

In this course, the educator discusses the most important subject of civil engineering "surveying". In this course, he starts from very basic to advance level and also cover some important numerical for clarity of the concept.

Lessons

16 lessons • 3h 24m

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Overview : Starts with Photogrammetry

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Photogrammetry : Relief displacement, Image Parallex

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Photogrammetry : Mapping with Aerial Photographs

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Remote Sensing

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Remote Sensing : Interaction with Atmosphere

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Remote Sensing Application in Real World

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Remote Sensing Satellites and it's Sensors

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Characteristics of Remote Sensing Sensors

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Types of Remote Sensing Satellites

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Weather, Land and Marine Observation Satellites and Sensors

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