Skip to main content

Smart Antenna

Smart antenna is one of the key enhanced technologies in the 3G system. SA (Smart Antenna) reduces the effects of time delay spread, Rayleigh fading, multi-path, channel interference, distinguishes the signals from the same frequency and timeslot, and combines with other multiple access technologies to maximize the use of frequency spectrum resources.

The SA in base stations is a kind of array antenna comprising multiple antenna cells. By adjusting the weight scope and phase of each signal and changing array pattern, it can cancel interferences and increase S/N. In addition, it can measure a user’s direction so that a beam is directed to the user.


Popular posts from this blog

How to Safely Uninstall Python from Mac OS X

Mac Laptops comes with Python pre-installed, but if you install another version of Python probably from it might interfere with the default Python installation. Thus it is recommended to install other Python versions through Homebrew or mac ports.

Advantages and Disadvantages of Electro-oculography (EOG)

In the previous post we looked at what is EOG? In this post we will look at the advantages and disadvantages of EOG.

What is your Lucky Colour?

Colours and You
Which colour can bring you luck and enhance your day? This can be identified by calculating the birth number,