Method And An Apparatus For Determining A Deviation Between An Actual Direction Of A Launched Projectile And A Predetermined Direction

A method of determining a distance between a predetermined direction of a launched projectile and a landing point of the projectile, the method comprising:

• 1. providing an image representing a target area,
• 2. indicating a position in the image, the indicated position corresponding to a position in the target area,
• 3. receiving, using a radar, radiation transmitted by or reflected by the projectile while it is in flight,
• 4. determining, from the received radiation, a landing point of the projectile,
• 5. determining a launch position of the projectile,
• 6. determining, from the launch position and the corresponding position, the predetermined direction, and
• 7. determining the distance between the landing point of the projectile and the predetermined direction.

An apparatus for presenting measurement data of a launched projectile, the apparatus comprising:

• imaging means for providing an image representing a target area,
• receiving means for receiving an indication of a position in the image, the receiving means being adapted to correlate the indicated position to a corresponding position in the target area,
• a radar for receiving radiation transmitted by or reflected by the projectile while it is in flight,
• determining means for, from the received radiation, determining measurement data of the projectile in a coordinate system of the radar,
• position means for determining a launch position of the projectile,
• transferring means for transferring the measurement data from the coordinate system of the radar into a coordinate systmem with origo at the launch position and with a horizontal reference line going through the corresponding position in the target area, and
• presenting means for presenting the transferred measurement data to a user.

An apparatus for determining a distance between a predetermined direction of a launched projectile and a landing point of the projectile, the apparatus comprising:

• imaging means for providing an image representing a target area,
• receiving means for receiving an indication of a position in the image, the receiving means being adapted to correlate the indicated position to a corresponding position in the target area,
• a Radar for receiving radiation transmitted by or reflected by the projectile while it is in flight,
• determining means for, from the received radiation, determining measurement data of the projectile in a coordinate system of the radar,
• position means for determining a launch position of the projectile,
• direction means for determining, from the launch position and the corresponding position, the predetermined direction, and
• distance means for determining the distance between the predetermined direction of the launched projectile and the landing point of the projectile.