{"id":3475,"date":"2019-02-12T16:09:15","date_gmt":"2019-02-12T16:09:15","guid":{"rendered":"https:\/\/cyflexdoc.wpengine.com\/usage-help-manual\/11-control-systems\/chirp\/"},"modified":"2025-08-28T14:15:42","modified_gmt":"2025-08-28T19:15:42","slug":"chirp","status":"publish","type":"page","link":"https:\/\/cyflex.com\/index.php\/usage-help-manual\/7-control-systems\/chirp\/","title":{"rendered":"chirp"},"content":{"rendered":"
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Purpose:<\/h3>\n<\/div>\n
\n
\n

Generate a swept-frequency cosine signal for system identification.<\/p>\n<\/dd>\n<\/dl>\n

Enter:<\/h3>\n
\n
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chirp<\/strong> <priority> <output_variable> <active> [duration] [start_freq] [final_freq] [method] [initial_phase]<\/p>\n<\/dd>\n<\/dl>\n

Where:<\/h3>\n
\n
\n
\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n
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priority<\/p>\n<\/td>\n

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Specify the task priority as an integer.<\/p>\n<\/td>\n<\/tr>\n

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output_variable<\/p>\n<\/td>\n

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Specify the output variable of chirp result.<\/p>\n<\/td>\n<\/tr>\n

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active<\/p>\n<\/td>\n

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Specify the name of the logical variable that controls the active flag.<\/p>\n<\/td>\n<\/tr>\n

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duration<\/p>\n<\/td>\n

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Optional. Specify the duration of the sweep in seconds. The default is 1 second (1s).<\/p>\n<\/td>\n<\/tr>\n

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start_freq<\/p>\n<\/td>\n

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Optional. Specify the starting frequency in Hz. The default is 0Hz.<\/p>\n<\/td>\n<\/tr>\n

\n

final_freq<\/p>\n<\/td>\n

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Optional. Specify the final frequency in Hz. The default is 25Hz.<\/p>\n<\/td>\n<\/tr>\n

\n

method<\/p>\n<\/td>\n

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Optional. Specify the method. The default is \u2018lin\u2019. Other options are ‘quadr’ and “log”.<\/p>\n<\/td>\n<\/tr>\n

\n

initial_phase<\/p>\n<\/td>\n

\n

Optional. Specify the initial phase in degrees. The default is 0 degrees.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/dd>\n<\/dl>\n

Example:<\/h3>\n
\n
\n

chirp<\/strong> 19 chirp_out chirp_active 10 0.1 10 ‘lin\u2019 3.14 &’<\/p>\n<\/dd>\n<\/dl>\n

Notes:<\/h3>\n
\n
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Ensure that the final frequency is greater than the starting frequency when using the ‘log’ method; otherwise, an error occurs.<\/p>\n<\/dd>\n<\/dl>\n

See Also:<\/h3>\n
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\n

 <\/p>\n<\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"

Purpose: Generate a swept-frequency cosine signal for system identification. Enter: chirp <priority> <output_variable> <active> [duration] [start_freq] [final_freq] [method] [initial_phase] Where: priority Specify the task priority as an integer. output_variable Specify the output variable of chirp result. active Specify the name of the logical variable that controls the active flag. duration Optional. Specify the duration of […]<\/p>\n","protected":false},"author":47,"featured_media":0,"parent":1958,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3475","page","type-page","status-publish","hentry"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/3475","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/users\/47"}],"replies":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/comments?post=3475"}],"version-history":[{"count":0,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/3475\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/1958"}],"wp:attachment":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/media?parent=3475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}