Recent experiments have shown that significant fluxes (10-1 erg/cm2 s) of energetic electrons can be precipitated into the ionosphere at times when VLF emissions are triggered in the magnetosphere by whistlers. If similar fluxes can be produced during the artificial triggering of VLF emissions by ground- or satellite-based VLF transmitters, then a powerful tool would be available for studying the dynamics of the lower ionosphere. In the present paper we explore the feasibility of a technique to stimulate ULF waves in the ionosphere using the tool of controlled particle precipitation. Periodic (period of >1/2 s) transmissions from a VLF ground-based transmitter are used to trigger VLF emissions and precipitate energetic electrons. The periodic precipitated flux modifies the conductivity of the D and E regions, inducing periodic changes in current flow which in turn result in the generation of Pc 1 ULF waves. Calculations indicate that ULF wave amplitudes of 1 &ggr; may be produced in this process. Furthermore, steady state magnetic field perturbations may reach 100 &ggr; at ground level. Since both these amplitudes would be readily measurable with present techniques, the results lend plausibility to the idea of attempting to produce detectable ULF waves by using ground- or satellite-based VLF transmitters.