Add:A Room, 11 Floor, D1unit, D Building_Junjing Huating Garden, Minzhi Street, South Side Of Bulong Road, Bao'an District, Shenzhen City, Guangdong Province, China
Shot directly by the transmitting antenna to receive radio waves known as direct wave; transmitting antenna sends out point to the ground, waves, waves arrive by ground reflection points is called reflection. Clearly, the received signal should be the synthesis of the direct wave and the reflected wave. Synthesis of wave will not be as simple as 1 + 1 = 2 algebraically, synthesis of results with the direct and reflected waves between wave path difference to another. Bochengcha is half a wavelength of an odd number of times, the direct wave and the reflected wave signal added into the largest bochengcha as a multiple of the wavelength, subtract direct wave and the reflected wave signal, into the smallest. Visible, ground reflection, making it complex to the spatial distribution of the signal strength.