Abstract: Register banks are used to allow for fast beam switching in a phased array system. Each beam forming channel is associated with a register bank containing M register sets for configuring such things as gain/amplitude and phase parameters of the beam forming channel. The register banks for all beam forming channels can be pre-programmed and then fast beam switching circuitry allows all beam forming channels across the array to be switched to use the same register set from its corresponding register bank at substantially the same time, thereby allowing the phased array system to be quickly switched between various beam patterns and orientations. Active power control circuitry may be used to control the amount of electrical power provided to or consumed by one or more individual beam forming channels such as to reduce DC power consumption of the array and/or to selectively change the effective directivity of the array.

Abstract: In a computer implemented spreadsheet, a method for detecting and selectively correcting cell reference errors after a cell is copied includes identifying at least one destination cell containing a formula with a reference error; and converting the address of at least one reference in the formula of the at least one destination cell from a relative address to an absolute address. A system for carrying out the claimed method includes a spreadsheet application module, a cell module, an error detection and correction module, a user dialog module, a dependency display module, a fix memory, and a rejection memory.

Abstract: An apparatus for deicing an aircraft is defined by an insulated shelter being a size capable of enclosing an aircraft. The shelter is positioned on a deicing surface that absorbs heat from means such as electrical filaments or heated pipes within the deicing surface or through the application of infrared radiation onto the deicing surface. In turn, the deicing surface radiates heat into the air within the shelter. Once an aircraft is enclosed within the shelter, infrared radiation is applied to a portion of the exterior surface of the aircraft. The combination of the infrared radiation and the heat radiating from the deicing surface rapidly deices and substantially dries the exterior surface of the aircraft. The exterior of the aircraft is subsequently heated to a sufficiently high temperature that ice will not reform on the aircraft prior to take off.