Patent Number: 
Section: claims

1. A synchronized pseudorandom sequence injector injection system for injecting a plurality of pseudorandom signals at selected locations in a power system having a plurality of locations forming a transmission and distribution grid, comprising:a synchronization pulse generator for generating an accurate clocking signal;a pseudorandom clocking and sequence generator for receiving the clocking signal and generating a string of pseudorandom sequences;a binary drive control for creating a tri-state voltage output from a logic level output of the pseudorandom clocking and sequence generator; anda signal conditioning interface for processing the voltage output to attenuate any protection related carrier signals from a pseudorandom signal injection point at a selected location; andan electrical power system component for injecting the pseudorandom signals at the selected location. 2. The synchronized pseudorandom sequence injection system of claim 1 wherein the electrical power system component for injecting the pseudorandom signal comprises a capacitor coupled voltage transformer that interfaces with the power system transmission and distribution grid. 3. The synchronized pseudorandom sequence injection system of claim 1 wherein the electrical power system component for injecting the pseudorandom signal comprises an inductively coupled clamp-on device that interfaces with the power system transmission and distribution grid. 4. The synchronized pseudorandom sequence injection system of claim 1 wherein the pseudorandom clocking and sequence generator comprises an adjustable length linear feedback register and a plurality of adjustable feedback taps. 5. The synchronized pseudorandom sequence injection system of claim 4 wherein the pseudorandom clocking and sequence generator further comprises a crystal oscillator and a divide by n circuit for generating an adjustable bit rate clock. 6. The synchronized pseudorandom sequence injection system of claim 1 further comprising a selectable voltage drive. 7. The synchronized pseudorandom sequence injection system of claim 1 wherein the synchronization pulse generator is based on a Global Positioning System (GPS). 8. The synchronized pseudorandom sequence injection system of claim 1 wherein the string of pseudorandom sequences comprises a plurality of injection parameters including a bit rate, a sequence length, a sequence bit order, and a signal amplitude. 9. The synchronized pseudorandom sequence injection system of claim 8 further comprising a manual control interface for selecting the plurality of injection parameters. 10. The synchronized pseudorandom sequence injection system of claim 1 wherein the signal conditioning interface blocks any 60 Hz alternating current or direct current components from the pseudorandom signal injection point. 11. An inductively coupled wireless clamp-on apparatus for attachment to a transmission line conductor at selected locations in a power system having a plurality of locations forming a transmission and distribution grid, comprising:a pseudorandom signal injector for injecting the plurality of pseudorandom signals at selected locations in a power system;a plurality of data capture sensors for capturing a time-synchronized response signal at a separate location in the power system from the location at which the pseudorandom signal is injected;a microprocessor controller for performing a cross-correlation of the captured response signal with the injected pseudorandom signal to determine a power system impulse response between the injection point location and the data capture location; anda wireless transceiver for providing broadband communications of injected pseudorandom signals and captured response signals over the power system transmission and distribution grid. 12. The inductively coupled wireless clamp-on apparatus of claim 11 further comprising a movable latch for securing the clamp-on apparatus around the transmission line conductor and completing an inductive circuit. 13. The inductively coupled wireless clamp-on apparatus of claim 11 further comprising a plurality of batteries for powering the clamp-on apparatus and a plurality of photovoltaic cells for recharging the batteries. 14. The inductively coupled wireless clamp-on apparatus of claim 11 wherein the wireless transceiver comprises a broadband antenna and provides 3G and 4G wireless broadband service. 15. The inductively coupled wireless clamp-on apparatus of claim 11 wherein the pseudorandom signal injector comprises:a synchronization pulse generator for generating an accurate clocking signal;a pseudorandom clocking and sequence generator for receiving the clocking signal and generating a string of pseudorandom sequences;a binary drive control for creating a tri-state voltage output from a logic level output of the pseudorandom clocking and sequence generator; anda signal conditioning interface for processing the voltage output to attenuate any protection related carrier signals from a pseudorandom signal injection point at a selected location. 16. The inductively coupled wireless clamp-on apparatus of claim 15 wherein the pseudorandom clocking and sequence generator comprises an adjustable length linear feedback register and a plurality of adjustable feedback taps. 17. The inductively coupled wireless clamp-on apparatus of claim 15 wherein the string of pseudorandom sequences comprises a plurality of injection parameters including a bit rate, a sequence length, a sequence bit order, and a signal amplitude. 18. The inductively coupled wireless clamp-on apparatus of claim 17 wherein the pseudorandom signal injector further comprises a manual control interface for selecting the plurality of injection parameters. 19. The inductively coupled wireless clamp-on apparatus of claim 17 wherein the plurality of injection parameters are set via a wireless broadband Internet connection with a host data processing system. 20. The inductively coupled wireless clamp-on apparatus of claim 15 wherein the pseudorandom signal injector further comprises a hardwired electrical circuit.