JPWO2021132430A5

JPWO2021132430A5 -

Info

Publication number: JPWO2021132430A5
Application number: JP2021567593A
Authority: JP
Filing date: 2020-12-24
Publication date: 2022-08-09
Anticipated expiration: 2040-12-24

Claims

a plurality of antennas for receiving radio signals;
a phase combining unit that combines a plurality of input signals based on the radio signals input from the plurality of antennas and generates a composite signal for estimating the direction of arrival of the radio signals;
an output unit that outputs the combined signal;
a change unit that performs change processing for changing at least one element related to processing from reception of the radio signal to generation of the combined signal;
with
The phase combining unit generates a first combined signal as the combined signal before the change processing by the change unit, and generates a second combined signal as the combined signal after the change processing by the change unit. ,
The output unit outputs the first synthesized signal and the second synthesized signal ,
The phase synthesizing unit performs a process of shifting the phase of at least one of the plurality of input signals in the synthesizing process,
The changing unit performs, as at least part of the changing process, a process of changing the phase shift amount in the combining process.
receiver.

further comprising a switching unit for switching an electrical connection state between the plurality of antennas and the phase synthesizing unit;
The changing unit performs, as at least part of the changing process, a process of controlling the switching unit to switch an electrical connection state between the plurality of antennas and the phase synthesizing unit.
2. Receiver according to claim 1.

The phase combining unit has a plurality of input units that are electrically connected to the plurality of antennas and receive the radio signals,
The number of the plurality of antennas is less than or equal to the number of the plurality of input units,
3. Receiver according to claim 1 or 2.

The changing unit performs, as at least part of the changing process, a process of changing a setting related to time when the plurality of antennas receive the radio signal.
4. A receiver as claimed in any one of claims 1 to 3.

(delete)

The plurality of antennas are capable of receiving a plurality of radio signals having different frequency bands as the radio signals,
The changing unit, as at least part of the changing process, performs a process of switching the frequency band of the radio signal to be combined.
6. A receiver as claimed in any one of claims 1 to 5.

Each of the plurality of antennas is capable of receiving a plurality of polarized waves different from each other as the radio signal,
The changing unit, as at least part of the changing process, performs a process of switching the type of polarization of the radio signal to be combined.
A receiver as claimed in any one of claims 1 to 6.

a receiver according to any one of claims 1 to 7;
an estimating unit that estimates the direction of arrival of the radio signal based on the first combined signal and the second combined signal output from the receiver;
comprising
receiving system.

a phase combining unit that combines a plurality of input signals based on a plurality of original signals to generate a plurality of radio signals;
a plurality of antennas for transmitting the plurality of wireless signals;
a changing unit that performs change processing for changing at least one element related to processing from reception of the plurality of original signals to transmission of the plurality of radio signals;
with
The phase synthesis unit generates a plurality of first radio signals as the plurality of radio signals before the change processing by the change unit, and generates a plurality of first radio signals as the plurality of radio signals after the change processing by the change unit. generating a second radio signal of
the plurality of antennas transmit the plurality of first radio signals and the plurality of second radio signals;
The phase synthesizing unit performs a process of shifting the phase of at least one of the plurality of input signals in the synthesizing process,
The changing unit performs, as at least part of the changing process, a process of changing the phase shift amount in the combining process.
transmitter.

a receiving step of receiving a radio signal;
a first phase combining step of combining a plurality of input signals based on the radio signals to generate a first combined signal for estimating the direction of arrival of the radio signals;
a first output step of outputting the first synthesized signal generated in the first phase synthesizing step;
a changing step of changing at least one element related to processing from the receiving step to the first phase synthesis step;
a second phase combining step of generating a second combined signal different from the first combined signal generated in the first phase combining step after the changing step;
a second output step of outputting the second synthesized signal generated in the second phase synthesizing step;
has
In the first phase synthesizing step, a process of shifting the phase of at least one of the plurality of input signals is performed;
In the second phase synthesis step, a process of shifting the phase of at least one of the plurality of input signals by an amount different from the phase shift amount in the first phase synthesis step,
receiving method.

A program for causing one or more processors to execute the receiving method according to claim 10.