A method and apparatus uses a VLF transmitter, a VLF receiver, and/or a low earth orbit satellite including a rocket engine. A VLF wave transmitted into space is converted to an ambient wave. The ambient wave acts as a signal wave for a whistler traveling wave parametric amplifier. Rocket exhaust is generated in atmospheric plasma. The rocket exhaust includes kinetic energy acting as a Lower Hybrid wave source. The Lower Hybrid wave source produces a Lower Hybrid wave, which acts as a pump wave for the parametric amplifier. Nonlinear mixing of the signal wave and the pump wave in the atmospheric plasma simultaneously parametrically amplifies the ambient wave and generates an idler wave and a parametrically amplified wave. The parametrically amplified wave (1) reduces the density of energetic protons or killer electrons in the Van Allen radiation belt, and (2) improves communications between the VLF transmitter and VLF receiver.


    Access

    Download


    Export, share and cite



    Title :

    Rocket Exhaust Driven Amplification (REDA) of VLF Waves in Space


    Contributors:

    Publication date :

    2022-06-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / F03H PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR , Erzeugung von Vortriebskraft [Schub] nach dem Prinzip des Rückstoßes, soweit nicht anderweitig vorgesehen / H05H Plasmatechnik , PLASMA TECHNIQUE



    Rocket exhaust driven amplification (REDA) of VLF waves in space

    BERNHARDT PAUL A | European Patent Office | 2024

    Free access

    Shin-seisoku-rēda

    Hirosawa, Haruto | TIBKAT | 2003



    Reply by Author to D.C. Reda

    DAVID C. WILCOX | AIAA | 1974