| Line 1: | Line 1: | ||
== the concept of modulation == | == the concept of modulation == | ||
| − | [[Image:a_ECE301Fall2008mboutin.jpg]]Why?•More efficient to transmit E&M signals at higher | + | [[Image:a_ECE301Fall2008mboutin.jpg]] |
| + | Why? | ||
| + | |||
| + | •More efficient to transmit E&M signals at higher frequencies | ||
| + | |||
| + | •Transmitting multiple signals through the same medium using different carriers | ||
| + | |||
| + | •Transmitting through “channels” with limited passbands | ||
| + | |||
| + | •Others... | ||
| + | |||
| + | How? | ||
| + | |||
| + | •Manymethods | ||
| + | |||
| + | •Focus here for the most part on Amplitude Modulation (AM) | ||
| + | |||
| + | [[Image:B_ECE301Fall2008mboutin.jpg]] | ||
== Amplitude Modulatioin of a Complex Exponential Carrier == | == Amplitude Modulatioin of a Complex Exponential Carrier == | ||
Revision as of 19:22, 17 November 2008
the concept of modulation
Why?
•More efficient to transmit E&M signals at higher frequencies
•Transmitting multiple signals through the same medium using different carriers
•Transmitting through “channels” with limited passbands
•Others...
How?
•Manymethods
•Focus here for the most part on Amplitude Modulation (AM)
