demokesola
New Member
Hi All,
I want to design a radar system with or without a display. (if without a display it should have a beeper that increases freqency as proximity to device gets smaller.
My Question:
1.Knowing that radar works on two basic principles: Echo and Doppler shift effect. at what frequencies of sound am i able to detect human presence?.
2. A friend says that i can also use Radio waves at high frequencies but i argue that EM field may not be able to detect human presence. Isn't this true.
If eventually i can't detect human What first things do i need to do to develop one that sees metal.
Thanks GURUs
I want to design a radar system with or without a display. (if without a display it should have a beeper that increases freqency as proximity to device gets smaller.
My Question:
1.Knowing that radar works on two basic principles: Echo and Doppler shift effect. at what frequencies of sound am i able to detect human presence?.
2. A friend says that i can also use Radio waves at high frequencies but i argue that EM field may not be able to detect human presence. Isn't this true.
If eventually i can't detect human What first things do i need to do to develop one that sees metal.
Thanks GURUs