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Table 1 Signal parameters and simulation conditions

From: Radar signal recognition based on triplet convolutional neural network

Signal types

Parameters

Ranges

NS

Carrier frequency \({{f}_{c}}\)

\(\left( 1/8\sim 1/4 \right) {{f}_{s}}\)

Number of samples N

\(\left[ 512,1024 \right]\)

Costas

Fundamental frequency \({{f}_{min}}\)

\(\left( 1/24\sim 1/20 \right) {{f}_{s}}\)

Number changed \({{N}_{c}}\)

\(\left[ 3,6 \right]\)

Number of samples N

\(\left[ 512,1024 \right]\)

Frank

Carrier frequency \({{f}_{c}}\)

\(\left( 1/8\sim 1/4 \right) {{f}_{s}}\)

Cycles per phase code cpp

\(\left[ 1,5 \right]\)

Samples of frequency stem M

\(\left[ 4,8 \right]\)

LFM&NLFM

Initial frequency \({{f}_{0}}\)

\(\left( 1/16\sim 1/6 \right) {{f}_{s}}\)

Bandwidth B

\(\left( 1/14\sim 1/8 \right) {{f}_{s}}\)

Number of samples N

\(\left[ 512,1024 \right]\)

BPSK

Carrier frequency \({{f}_{c}}\)

\(\left( 1/14 \sim 1/8 \right) {{f}_{s}}\)

Barker codes

\(\left\{ 7,11,13 \right\}\)

Cycles per phase code cpp

\(\left[ 1,5 \right]\)

Number of code periods \({{N}_{p}}\)

\(\left[ 100,300 \right]\)

TI–T4

Number of segments k

\(\left[ 4,6 \right]\)

Overall code duration T

\(\left[ 0.07,1 \right]\)