Have you ever tried to listen to a song on the radio, but the sound was really bad and you couldn't understand the words? Sometimes, that happens because the signal gets mixed up and distorted as it travels through the airwaves to your radio.
A zero-forcing equalizer is like a superhero that tries to fix that problem. It's a special tool that helps to "equalize" the signal - which means it tries to make the distorted parts of the signal clearer and easier to understand.
The way it works is this: the equalizer looks at the signal that's coming in and tries to figure out what parts of it are getting mixed up and causing the distortion. Then, it uses some special math tricks to "subtract" those mixed up parts from the original signal. This is kind of like fixing a puzzle - when you take away the wrong pieces, what's left is the right picture.
Once the equalizer has "zero-forced" those mixed up parts out of the signal, what's left is a cleaner, more understandable sound. So, it's kind of like having a teacher help you with your homework - they can help you understand what the signal is trying to say!
In conclusion, a zero-forcing equalizer is a tool that helps clean up distorted signals and makes them easier to understand. It uses some clever math tricks to "subtract" the mixed-up parts and leave only the clear, correct information.