A121 Pulsed Coherent Radar (PCR)

Datasheet v1.0

© 2023 Copyright by Acconeer

2023-03-30

Page 14 of 29

4.9 Absolute RLG

Table 11 summarizes the absolute radar loop gains for different sensor profile configurations,

HWAAS=1, typical ratings at Top = -40ºC to 105ºC. SNR and RLG scales linearly with HWAAS,

meaning a 3dB increase for every doubling of HWAAS.

Profile

T (

°C)

Typ.

Unit

mean

Std.

1

-40

15

0.7

dB

1

25

11

0.8

dB

1

105

4

1.1

dB

2

-40

17

0.7

dB

2

25

13

0.7

dB

2

105

9

0.6

dB

3

-40

22

0.6

dB

3

25

19

0.7

dB

3

105

15

0.6

dB

4

-40

24

0.7

dB

4

25

20

0.7

dB

4

105

17

0.6

dB

5

-40

25

0.9

dB

5

25

22

0.9

dB

5

105

18

0.8

dB

Table 11. Typical RLG values for the sensor profile configurations.

4.10 A121 Temperature Sensor

The A121 includes an internal temperature sensor that can be used for relative temperature

measurements. Such measurements can, for example, be used to predict change of the signal and noise

components. The typical relative deviation from true temperature change is 4.4%. I.e., given a change

in temperature x, the measured temperature typically changes x ± x ∙ 4.4%.