RFbeam Microwave GmbH

RSP1 Radar Processor

Datasheet

Trigger Level Table (Sensitivity)

Values from this tables are addressed by parameter A02 (Sensitivity)

Default Values:

Param A02 value

0

1

2

3

4

5

6

7

8

9

X10...X19 HEX

00DC

00BE

00A0

008C

0078

0064

003C

0028

0014

0000

Decimal

220

190

160

140

120

100

60

40

20

0

Table 11: Array Parameter X1n trigger level

FFT Filter

Up to 8 different, individual frequencies may be filtered by setting values according to the FFT frequency

resolution (called df).

Filtered frequency = Parameter X * df;

See chapter 8.4 Sampling Rate and Frequency Resolution for more details.

Parameter

X20

X21

X22

X23

X24

X25

X26

X27

Value (HEX)

0001

000A

0

0

0

0

0

0

Filter frequency @ S03 = 2

10Hz

100Hz

--

--

--

--

--

--

Table 12: Array parameter X2n filter

8.3.3 Application Parameters

Application parameters are typically accessible be the end-user. Values range from 1 ..9 i(n order to

become accessible by simple one digit entry. Exception: frequency filters A06 and A07.

More detailed description.

A01 Hold Time

Sets retriggerable output hold time. Value is is a pointer to the array parameters X00 to X09. See Table 10

A02 Sensitivity

Sets trigger threshold. Value is a pointer to the array parameters X10 to X19. See Table 11.

Used to set an approximate maximum detection range.

A03 Immunity

Sets the number of consecutive internal triggers until the detection output will be set.

This parameter therefore influences the output reaction time. See also chapter 5.3 Response time

A04 reserved

A05 direction

Defines which moving direction shall be detected. This value has only effect for I/Q sensors.

A06

A07

frequency

limits

These values build very selective frequency(=object speed) range filters. Values represent FFT bins from 1

to 127 (0x7F) in hexadecimal notation. Filters apply for both forward and backward directions.

Example:

Set output only for cars exceeding 53km/h. (with sampling rate set to 11.264kHz (parameter S03=09):

Minimum frequency (speed) A06=35 (hex) correspondig to 53 (decimal)

Maximum frequency

A07=00 (no limit)

© RFbeam Microwave GmbH www.rfbeam.ch

December 11, 2015

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