Digital dynamic delay for analog power savings in multicarrier burst waveforms

Patent metadata

Field	Value
Publication number	US-10742467-B1
Application number	US-201916508047-A
Country	US
Kind code	B1
Filing date	Jul 10, 2019
Priority date	Jul 10, 2019
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

A signal processor is provided for use with a first signal generator and a second signal generator, wherein the first signal generator provides a first signal having a first amplitude and the second signal generator provides a second signal having a second amplitude. The signal processor includes: a threshold component that stores a threshold value; a threshold detection component that generates a sum of the first amplitude and the second amplitude, compares the sum with the threshold value, generates a modification required signal when the sum is greater than the threshold value; a delay component that generates a delay signal; and a delay processor operable to output an output signal based on the sum of a modified first signal and the second signal when the sum is greater than the threshold value.

First claim

What is claimed as new and desired to be protected by Letters Patent of the United States is:

1. A signal processor for use with a first signal generator and a second signal generator, the first signal generator being operable to provide a first signal having a first amplitude at a first time period the second signal generator being operable to provide a second signal having a second amplitude at a second time period the signal processor comprising:
a threshold component operable to store a threshold value;
a threshold detection component operable to generate a sum of the first amplitude and the second amplitude, to compare the sum with the threshold value, to generate a modification required signal when the sum is greater than the threshold value and to generate a modification not-required signal when the sum is less than or equal to the threshold value;
a delay component operable to generate a delay signal;
a delay processor operable to output a first output signal based on the sum when the sum is less than or equal to the threshold, to generate a modified first signal by applying a time delay to the first signal when the sum is greater than the threshold value and to output a second output signal based on the sum of the modified first signal and the second signal when the sum is greater than the threshold value;
further comprising a transmitter operable to transmit one of the first output signal and the second output signal; and
further comprising an excessive peak warning component operable to generate a warning signal based on the sum.

2. The signal processor of claim 1 , further comprising a threshold controller operable to change the threshold value.

3. A method of operating a transmission system comprising:
providing, via a first signal generator, a first signal having a first amplitude at a first time period;
providing, via a second signal generator, a second signal having a second amplitude at a second time period;
storing, into a threshold component, a threshold value;
generating, via a threshold detection component, a sum of the first amplitude and the second amplitude;
comparing, via the threshold detection component, the sum with the threshold value;
generating, via the threshold detection component, a modification required signal when the sum is greater than the threshold value;
generating, via the threshold detection component, a modification not required signal when the sum is less than or equal to the threshold value;
generating, via a delay component, a delay signal indicating a delay amount;
outputting, via a delay processor, a first output signal based on the sum when the sum is less than or equal to the threshold;
generating, via the delay processor, a modified first signal by applying a time delay of the delay amount to the first signal when the sum is greater than the threshold value;
outputting, via the delay processor, a second output signal based on the sum of the modified first signal and the second signal when the sum is greater than the threshold value;
further comprising transmitting, via a transmitter, one of the first output signal and the second output signal, and
further comprising generating, via an excessive peak warning component, a warning signal based on the sum.

4. The method of claim 3 , further comprising changing, via a threshold controller, the threshold value.

5. A non-transitory, tangible, computer-readable media having computer-readable instructions stored thereon, the computer-readable instructions being capable of being read by a computer and being capable of instructing the computer to perform the method comprising:
providing, via a first signal generator, a first signal having a first amplitude at a first time period;
providing, via a second signal generator, a second signal having a second amplitude at a second time period;
storing, into a threshold component, a threshold value;
generating, via a threshold detection component, a sum of the first amplitude and the second amplitude;
comparing, via the threshold detection component, the sum with the threshold value;
generating, via the threshold detection component, a modification required signal when the sum is greater than the threshold value;
generating, via the threshold detection component, a modification not required signal when the sum is less than or equal to the threshold value;
generating, via a delay component, a delay signal indicating a delay amount;
outputting, via a delay processor, a first output signal based on the sum when the sum is less than or equal to the threshold;
generating, via the delay processor, a modified first signal by applying a time delay of the delay amount to the first signal when the sum is greater than the threshold value;
outputting, via the delay processor, a second output signal based on the sum of the modified first signal and the second signal when the sum is greater than the threshold value;
transmitting, via a transmitter, one of the first output signal and the second output signal; and
the computer-readable instructions being capable of instructing the computer to perform the method further comprising generating, via an excessive peak warning component, a warning signal based on the sum.

6. The non-transitory, tangible, computer-readable media of claim 5 , the computer-readable instructions being capable of instructing the computer to perform the method further comprising changing, via a threshold controller, the threshold value.

Assignees

• Government Of The United States As Represented By The Secretary Of The Navy
• Us Navy

Inventors

• Civerolo Michael P
• Lumsden Nicholas A
• Overturf Drew E

Classifications

• H03F3/24 Primary

  of transmitter output stages · CPC title

• H03F2200/451

  the amplifier being a radio frequency amplifier · CPC title

• H03F1/3241

  using predistortion circuits (H03F1/3211, H03F1/3217 take precedence) · CPC title

• H04L27/2627

  Modulators · CPC title

• H04L27/2614 Primary

  Peak power aspects · CPC title