How do you compare navigation systems of the world like GPS, GLONASS, Galileo, and specially BeiDou with our NavIC in military applications?
When the base of the object is inaccessible we use an indirect method of surveying. A tachometer is used to measure the distance between the two points with the use of an analytical lens. There are two methods Stadia method: In this method diaphragm of the tachometer are provided with two stadia haiRead more
When the base of the object is inaccessible we use an indirect method of surveying.
A tachometer is used to measure the distance between the two points with the use of an analytical lens. There are two methods
- Stadia method: In this method diaphragm of the tachometer are provided with two stadia hair .the difference between staff intercept gives stadia reading.
- Tangential Method: in this method, the tachometer is not provided with stadia hairs, the reading is taken by single horizontal hair.
D=(f/L)S + (f + d)
D=horizontal distance between tachometer and stadia rod.
f/L = multiplying constant
S= Staff Intercept
Elevation formula:
v = KSsin(2©)/2 + Ccos(2©)
© = Theta= Angle of elevation or depression.
K & C = Tachometric Constant
substance method and tangential method is also used to find the elevation between two points.
See less
AdityaBhandakkar
All the 5 are positioning system used for navigation purpose. The different positioning system is originated from different countries. the positioning system you mentioned belongs to different countries and because of that names are different. GPS(GLOBAL POSITIONING SYSTEM) is made by the United StaRead more
All the 5 are positioning system used for navigation purpose. The different positioning system is originated from different countries. the positioning system you mentioned belongs to different countries and because of that names are different.
- GPS(GLOBAL POSITIONING SYSTEM) is made by the United States.
- QZSS(QUASI-ZENITH SATELLITE SYSTEM). It is made by Japanese.
- BEIDOU(1 & 2) -it is a satellite navigation system of China.
- GALILEO– this is a European positioning system which is divided into three parts i.e space, ground, the user.
- GLONASS– it is a Russian version of the positioning system has five versions till now.
See less