beamforming matlab,波束成形技术（Beamforming 101）

Beamforming enables you to find problems in your system before they occur. As Martin explains， you can perform your own investigation with a computer， a dual-channel A/D card， a pair of microphones， and some software.

Tensions are high and a hostile submarine lurks in the waters just off the coast. A patient exhibits troubling symptoms-do layers of tissue mask a tumor？ A driver checks his mirrors and begins to change lanes but never sees the truck hiding in his blind spot.

It‘s better to go looking for trouble than to have it find you. But how do you do that？ Whether it's subhunting sonar， medical ultrasound，or collision-avoidance radar， how do you uncloak danger？

One important arrow in your quiver is beamforming. Think of it as a way to focus and measure the energy falling on an array of sensors as you "look" in different directions. You can d