Sentence examples for difference between the spoofing from inspiring English sources
Record the power difference between the spoofing signal and the authentic signal.
Therefore, the spoofing signal can be identified by finding the difference between the spoofing signal and the authentic signal.
If spoofing is successful, go to step 4. Otherwise, increase the power of the spoofing signal, and repeat step 3. Record the power difference between the spoofing signal and the authentic signal.
The power difference between the spoofing signal and authentic signal, the carrier phase difference, and the code phase difference between the two signals are configured to generate the spoofing signal.
This is because when the carrier phase difference between the spoofing and authentic signals is within the range (90°, 180°), these two signals are no longer in superposition and weaken each other.
In the deduction in Reference [15], an initial conclusion is obtained: at t1, the phase difference between the spoofing signal and the local code is τS t1); the code phase difference between an authentic signal and the local code is τR t1); and once τR t1) < d and τS t1) > d, spoofing will fail.
Similar to the test procedure in Section 4.1, the carrier phase difference between the authentic signal and the spoofing signal is set to 0.1, 0.2, 0.3, 0.4, and 0.5 (unit, radians).
The code phase difference between the authentic signal and spoofing signal is gradually adjusted to separate the two signals.
Here τ0 represents the code phase difference between a spoofing signal and an authentic signal; this error is caused by an inaccurate estimation of the target receiver position by the spoofer.
(8 where E(t1) and L t1) represent the lead correlation and lag correlation at t1; τ0 represents the code phase difference between a spoofing signal and an authentic signal at t0 and t1.
For a receiver with external reference information, when a spoofing attack causes a significant difference between the result calculated by a receiver and the external reference information, the received signal may contain a spoofing signal.
